Practice Test

Q1) Some cells in our body can be over a foot long, they are: Show Answer

Q2) Power of regeneration is lowest in: Show Answer

Q3) Nervous system is concerned with two important functions: Show Answer

Q4) A neuron is: Show Answer

Q5) Synapse is a term to denote the: Show Answer

Q6) The sympathetic and parasympathetic systems constitute: Show Answer

Q7) The central nervous system inclueds: Show Answer

Q8) The central nervous system; cranio-spinal system; autonomic system and receptor system in a vertebrate collectively forms: Show Answer

Q9) Brain in frog is contained in cranium, enveloped by connective tissue membrane called: Show Answer

Q10) The brain is surrounded by an outer fibrous, non-vascular membrane called: Show Answer

Q11) The inner membrane surrounding brain is: Show Answer

Q12) Pineal stalk, a slender tubular structure arises from: Show Answer

Q13) Optic chiasm is formed by the crossing over of two: Show Answer

Q14) Hypothalamus forms the floor and lower part of: Show Answer

Q15) Two-thirds of entire brain is made of: Show Answer

Q16) In mammals the two lobes of cerebral hemisphere are connected by large distinctive transverse fibrous bridge of white matter called: Show Answer

Q17) Cell bodies of neurons bringing afferent information into spinal cord are located in: Show Answer

Q18) In brain, crura cerebri is a structure made of: Show Answer

Q19) The roof of medulla oblongata is thin and piamater in this portion is greatly folded, richly vascular and pushed into cavity of medulla as: Show Answer

Q20) The ventricles of brain and central canal of spinal cord are filled with a fluid called: Show Answer

Q21) Olfactory lobes of human are: Show Answer

Q22) Nissl granules in the nerve cell bodies are actually: Show Answer

Q23) The anterior choroid plexus is located in or near the: Show Answer

Q24) The pineal body is considered as: Show Answer

Q25) If cerebral hemispheres of frog are removed, it: Show Answer

Q26) In human brain, corpora quadrigemina represents: Show Answer

Q27) The cavity of spinal cord is called: Show Answer

Q28) Brain develops from: Show Answer

Q29) The function of central nervous system: Show Answer

Q30) Corpora striata is a part of: Show Answer

Q31) Foramen of Monro in brain is an aperture between: Show Answer

Q32) Which part of the brain controls muscular co-ordination? Show Answer

Q33) A deep longitudinal fissure divides the cerebrum: Show Answer

Q34) The dendrites of a typical vertebrate motor neuron, compared to the neuron's axon are generally: Show Answer

Q35) The parts of neurons that perform basic cellular functions, such as protein synthesis, are the: Show Answer

Q36) The medulla oblongata continues as spinal cord which runs in the canal of the: Show Answer

Q37) It is said injury to brain is permanent and nerve cells cannot regenerate. The reason is: Show Answer

Q38) Regulation of heart beat and respiration is controlled by: Show Answer

Q39) The volume of blood supplied to the brain per miunte is: Show Answer

Q40) Third ventricle of rabbit's brain is called: Show Answer

Q41) Learning is related to which part of human brain? Show Answer

Q42) Thermo-regulatory centre in the body is: Show Answer

Q43) The ganglion from which trigeminal nerve arises is called: Show Answer

Q44) The maximum number of meninges in animals is/are: Show Answer

Q45) Foramen of Magendie is found in: Show Answer

Q46) When action potential jumps from one node of Ranvier to the next, it is termed as: Show Answer

Q47) The sensory neuron transmits patterns of action potentials that indicate: Show Answer

Q48) A receptor that detects the position of parts of the body is called: Show Answer

Q49) Regulatory control of deep body temperature, osmoregulation, thirst and hunger occur in the: Show Answer

Q50) In looking at the evolution of the vertebrate brain from fish to humans, the greatest increase in size are seen in the: Show Answer

Q51) Plasticity in a nervous system is reflected in animal: Show Answer

Q52) Impulses leave a neuron via the: Show Answer

Q53) The myelin sheath around the axons of some vertebrate neurons: Show Answer

Q54) In humans the cerebral cortex is roughly about 80% of total brain mass. A touch on right hand stimulates neurons in the: Show Answer

Q55) A neuron transmits information about the intensity of a stimulus that it has received by: Show Answer

Q56) The ventricles of cerebral hemispheres communicate through: Show Answer

Q57) The main functions of cerebrospinal fluid in the ventricles of brain and central canal of spinal cord is: Show Answer

Q58) The optic nerves in brain leave the cranium by the: Show Answer

Q59) The oculomotor nerve arises from crura cerebri and innervates: Show Answer

Q60) The facial nerve arises form medulla oblongata and it is: Show Answer

Q61) Pneumogastric or vagus nerve is both sensory and motor in nature and innervates: Show Answer

Q62) In brain the chief co-ordinating centres for intelligence, memory, emotions and ability to learn from experience is present at: Show Answer

Q63) Cerebellum is the centre for reflex coordination and muscular tone. If the cerebellum is injured: Show Answer

Q64) In one second nerve impulse travels about: Show Answer

Q65) Respiration, circulation of blood, heart beat, digestive organ movements, swallowing, gland secretion and all unconscious activities are controlled: Show Answer

Q66) The H shaped matter surrounding the central canal of spinal cord is known as: Show Answer

Q67) Aqueduct of Sylvius or iter connects: Show Answer

Q68) Mammalian brain can be distinguished externally from amphibian brain by: Show Answer

Q69) Filum terminale is the name given to: Show Answer

Q70) Cranial nerve which brings impulse from skin of snout, upper jaw, tongue and lower jaw is: Show Answer

Q71) The spinal nerve are: Show Answer

Q72) Which of the following is purely a motor nerve? Show Answer

Q73) The 9th cranial nerve is called: Show Answer

Q74) Auditory nerve innervates: Show Answer

Q75) Sciatic nerve in frog is originated from a plexus formed by: Show Answer

Q76) The optic nerve is responsible for: Show Answer

Q77) Difference in reflex and reflex action lies in: Show Answer

Q78) The number of spinal nerves in frog is: Show Answer

Q79) Among the following which is concerned with neurosecretion in a vertebrate? Show Answer

Q80) Which one of the following is smallest nerve that innervates cephalic region only? Show Answer

Q81) Only one cranial nerve is longest and innervates organs situated outside the cephalic regions of the body also. It is; Show Answer

Q82) The eighth cranial nerve carries impulse from: Show Answer

Q83) Which of the following statements is correct? Show Answer

Q84) Optic chiasm is principally concerned with: Show Answer

Q85) Which of the following cranial nerves is purely motor in function? Show Answer

Q86) The body of sensory neuron involved in a simple reflex action is located in the: Show Answer

Q87) When movements occur without the intervention of the brain they are called: Show Answer

Q88) The axon membrane shows a positive charge on the outside and negative charge inside, this is called: Show Answer

Q89) The duration of absolute refractory period of a nerve fibre is: Show Answer

Q90) The hormone adrenaline is same as the neurotransmitter: Show Answer

Q91) The term arachnoid is derived from arachine and means: Show Answer

Q92) Which one of the following nerves is not related to the movement of eye ball? Show Answer

Q93) Central canal of frog lined by ependyma is a continuation of: Show Answer

Q94) Which one is a function of parasympathetic nervous system in mammals? Show Answer

Q95) Which one of the following is the effect of parasympathetic nervous system: Show Answer

Q96) Cerebral hemisphere of frog has a cavity called: Show Answer

Q97) In frog the nature of glossopharyngeal and vagus nerve is: Show Answer

Q98) Stimulation of vagus nerve: Show Answer

Q99) At the nerve synapses: Show Answer

Q100) The nerve fibres which conduct impulses from the peripheral to the central nervous system are called: Show Answer

Q101) The nerve fibres which carry impulses from the central nervous system to the muscles and glands for contration and secretion are called as: Show Answer

Q102) When sympathetic system acts on a particular organ, its action is: Show Answer

Q103) The simplest form of nervous system that integrates body activities is found in cnidarians and called: Show Answer

Q104) Excitability and conductivity are the outsatnding properties of: Show Answer

Q105) Dendrities transmit the impulses to: Show Answer

Q106) Resting potential of nerve cells is: Show Answer

Q107) Nerve is: Show Answer

Q108) Myelinated fibres are nerve fibres which are: Show Answer

Q109) If a frog is pithed and an electric shock is applied to its leg: Show Answer

Q110) The transmission of nerve impulse is a: Show Answer

Q111) The potential difference between inside and outside of a neuron before excitation is known as: Show Answer

Q112) What is the difference between the conduction of electricity through an electric wire and that of nerve impulse through a nerve fibre? Show Answer

Q113) When nerve is stimulated. It is polarized. Depolarization is maintained by the following ion: Show Answer

Q114) During resting condition the membrane of axon is: Show Answer

Q115) The part of ommatidium that is functionally similar to retina is: Show Answer

Q116) The simplest form of nerve network is: Show Answer

Q117) The chemical theory of transmission attributes the response of postsynaptic cells to a chemical substance released from: Show Answer

Q118) Acetylcholine is most closely associated with which of the following systems? Show Answer

Q119) The sensory ganglion concerned with spinal reflex lies in: Show Answer

Q120) Sodium pump of an axon is operative at: Show Answer

Q121) The gap between terminal knobs of an axon and dendrites of the cell body of another axon is known as: Show Answer

Q122) Acetylcholine is: Show Answer

Q123) Action potential is: Show Answer

Q124) During refractory period: Show Answer

Q125) Electrical impulse of the eye recorded are: Show Answer

Q126) Neurotransmitters are compounds which: Show Answer

Q127) The 3rd, 6th, and 11th cranial nerves are: Show Answer

Q128) Which of the following cranial nerves is present in rabbit but absent in frog? Show Answer

Q129) Nervous system was first of all originated in: Show Answer

Q130) Sympathetic nerves in mammals arise from: Show Answer

Q131) At the nerve cell membrane, the equilibrium potential for potassium is: Show Answer

Q132) The "spike" phase of action potential lasts for roughly: Show Answer

Q133) One nerve is stimulated, it is polarized. Depolarization is maintained by the following ion. Show Answer

Q134) Conduction of nerve impulse along a myelinated nerve is: Show Answer

Q135) Somesthetic area is located in: Show Answer

Q136) The ends of bipolar neurons in retina of man touch: Show Answer

Q137) Glands of Swammerdam are rich in: Show Answer

Q138) Sensory neuron in a vertebrate reflex are located in: Show Answer

Q139) The benzodiazepine drug known as valium produces relaxation by aiding the binding to receptor proteins of inhibitory neurotransmitter: Show Answer

Q140) Which one of the following is function of pons Varolii? Show Answer

Q141) Cervical plexus is formed by: Show Answer

Q142) Presynaptic membrane permits: Show Answer

Q143) Heart beat is regulated by: Show Answer

Q144) The refractory centre which regulates respiration is located in: Show Answer

Q145) Which brain structure in rabbit is directly vision related? Show Answer

Q146) Most of the neurons of our body are: Show Answer

Q147) Body co-ordination is exhibited by: Show Answer

Q148) The sodium-potassium pump: Show Answer

Q149) In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive: Show Answer

Q150) The resting potential of neurons is -70 m V. It is mainly due to: Show Answer

Q151) A nerve impulse which travels through nerve fibre only if its membrane suddenly becomes more permeable to ions of: Show Answer

Q152) An action potential, for a given axon, is: Show Answer

Q153) Which of the following increase when an action potential is initiated? Show Answer

Q154) When an action potential abruptly drops from postive to negative, this is because: Show Answer

Q155) A nerve impulse leaves a neuron via: Show Answer

Q156) Synapse is a gap between adjacent: Show Answer

Q157) A nerve which conveys impulses from a tissue to nerve centre is called: Show Answer

Q158) The speed at which impulses are conducted increases with: Show Answer

Q159) Saltatory conduction of nerve impulses occurs in: Show Answer

Q160) Synaptic fatigue is due to: Show Answer

Q161) Secretion of parasympathetic nerve endings is: Show Answer

Q162) Anesthetics reduce pain by blocking the transmission of nerve impulses. The kind of chemicals working as anesthetics are those that block: Show Answer

Q163) In brain centre for thirst is situated in: Show Answer

Q164) Nerve impulse travels by steps: Show Answer

Q165) Simple two neuron reflex are involved: Show Answer

Q166) Slow neurotransmission is mediated by: Show Answer

Q167) Which of the following nerves is absent in frog? Show Answer

Q168) Which of the nerves functions more like a tract of brain than a nerve? Show Answer

Q169) Which of the following is not strictly considered a part of neuron? Show Answer

Q170) The vagus nerve is cranial nerve numbering: Show Answer

Q171) The Nissl granules of nerve cells are made up of: Show Answer

Q172) Centre for sense of smell is: Show Answer

Q173) Nerve related to diaphragm is: Show Answer

Q174) During development of action potential in a nerve fibre, positive and negative charges on outer and inner side of axon membrane are reversed dut to: Show Answer

Q175) Broca area and Wernicke centre of association area occur in cerebrum. They are connected with: Show Answer

Q176) Centre of thirst and hunger is located in: Show Answer

Q177) Common feature amongst acetylcholine, noradrenalineand serotonin is: Show Answer

Q178) At resting stage nerve cell has: Show Answer

Q179) Nerve axon takes part in: Show Answer

Q180) Preganglionic sympathetic fibres are: Show Answer

Q181) Arbor vitae is composed of: Show Answer

Q182) Action potential has what value? Show Answer

Q183) Venom of Cobra affects: Show Answer

Q184) A frog with crushed brain is pinched on the leg. The leg is drawn away. It is: Show Answer

Q185) Structure connected with vision in Rabbit is: Show Answer

Q186) Which one of the following is a purely motor nerve? Show Answer

Q187) Refractory period is during: Show Answer

Q188) Node of Ranvier is the place where: Show Answer

Q189) Which of the following cranial nerve controls the movement of eye ball? Show Answer

Q190) Which of the following is a part of human brain? Show Answer

Q191) A bipolar neuron has: Show Answer

Q192) These processes occur during repolarization of nerve fibre: Show Answer

Q193) Touch on the right side stimulate neurons on: Show Answer

Q194) Respiratory centre of brain is sensitised by: Show Answer

Q195) Cerebrospinal fluid is present: Show Answer

Q196) That part of the brain which is involved in interpreting an input, storing input information and initiating a response in the light of similar past experience is: Show Answer

Q197) The point in eye of mammals from which optic nerves and blood vessels leaves the eye ball is: Show Answer

Q198) The primary visual area is located in: Show Answer

Q199) Choroid plexus is a network of: Show Answer

Q200) Injury to vagus nerve in human is not likely to affect: Show Answer

Q201) Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that: Show Answer

Q202) Which of the following is mixed nerve? Show Answer

Q203) Four healty people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells? Show Answer

Q204) One of the examples of the action of the automomous nervous system is: Show Answer

Q205) Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter: Show Answer

Q206) In a man, abducens nerve is injured. Which one of the following functions will be affected? Show Answer

Q207) Tree of life is: Show Answer

Q208) Arbor vitae is part of: Show Answer

Q209) Which has H - shaped grey matter? Show Answer

Q210) Carnial nerve (in pairs) in frog and man are Show Answer

Q211) In parasympathetic nervous system which of the following is released? Show Answer

Q212) Hypothalamus does not control: Show Answer

Q213) The brachial plexus are formed by these spinal nerves: Show Answer

Q214) Which one of the following does not act as a neurotransmitter? Show Answer

Q215) How many pairs of spinal nerve are found in human? Show Answer

Q216) The decoding and interpretation of visual information is carried out by which part of the brain? Show Answer

Q217) A typical value of resting membrane potential is: Show Answer

Q218) Bowman's glands are located in the: Show Answer

Q219) During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge? Show Answer

Q220) During the propagation of a nerve impulse, the action potential results from the movement of: Show Answer

Q221) The potential maintained across the neuron membrane during the resting state is: Show Answer

Q222) Which of the following is a function of nervous system? Show Answer

Q223) One of the following lack neurons: Show Answer

Q224) If neurons are clustered into groups in the CNS, they are termed: Show Answer

Q225) Bipolar neurons are located in the: Show Answer

Q226) The excitability property of nerve cells is the ability to respond to certain stimuli. This property is due to presence of: Show Answer

Q227) When a neuron is not sending a signal at rest, the plasma membrane is: Show Answer

Q228) Resting membrane potential can be measured by using two electrodes, one inside and the other outside the axon. This can be recorded with: Show Answer

Q229) In neuron, the resting membrane potential ranges from -40 to -90 mV. The typical value is: Show Answer

Q230) What is the trigger zone for a particular neuron? Show Answer

Q231) Action potential is also known as: Show Answer

Q232) Energetically saltatory conduction: Show Answer

Q233) Synaptic vesicles present in the synaptic knobs has a diameter of 50 nm. It contains how many molecules of neurotransmitter? Show Answer

Q234) Adult brain weighs about two per cent of their body weight. Its full size is formed at the age of: Show Answer

Q235) Within the soft and delicate tissue of gelatinous consistency are more than 100 billion neuron. Each can connect with as many as 25000 other cells. How many interlinked complex nerve connections are present in human brain? Show Answer

Q236) The all-or-none principle states that: Show Answer

Q237) The loss of positive ions from the interior of a neuron produces: Show Answer

Q238) Which of the following describe the largest amount of the human cerebral cortex? Show Answer

Q239) Which statement about the autonomic nervous system is true? Show Answer

Q240) Which statement is not true? Show Answer

Q241) Which of the following cranial nerves are mixed:
1. Vagus
2. Trigeminal
3. Glossopharyngeal
4. Auditory. Show Answer

Q242) Compare the effects of sympathetic and parasympathetic nervous system for four features (1-4). Which one feature is correctly described? Show Answer

Q243) The left cerebral hemisphere:
(a) receives most modalities of sensory information from the right side of the body
(b) is usually larger than the light
(c) is the dominant cerebral hemisphere in most individuals
(d) is connected to the right by the corpus callosum
(e) contains the main areas for the understanding and production of speech in most individuals which of the above statements are true Show Answer

Q244) Which one is correct about the physiology of eye? Show Answer

Q245) Part of ear where sound is transduced is Show Answer

Q246) You are watching a horror movie and you notice your heart is beating fast and mouth is dry. It is because of Show Answer

Q247) When the stimulus reaches the end of one neuron, it is conducted to the adjacent neuron through
the secretions of Show Answer

Q248) The reflex pathway comprises Show Answer

Q249) The highly specialized cells called neurons can Show Answer

Q250) Which of the following statements are correct about the midbrain?
I. Located between the thalamus/
hypothalamus
II. Has a canal named cerebral aqueduct passes through
III. Dorsal part consists of 4 lobes
Choose the correct option Show Answer

Q251) Presynaptic neuron and a post-synaptic neuron may or may not be separated by a gap called Show Answer

Q252) The band of fibre which joins corpora quadrigemina to cerebellum is called
Show Answer

Q253) What kind of neural organization can be seen in lower vertebrates? Show Answer

Q254) The movement of the nerve impulse across synaptic cleft is primarily Show Answer

Q255) During the conduction of nerve impulse, the repolarization occurs with the
Show Answer

Q256) Which of the following are the properties of neural system? Show Answer

Q257) Which part of brain controls intellectual ability? Show Answer

Q258) The middle layer of human eye, choroid contains …A… and looks …B… in colour
Choose the correct option for A, B
Show Answer

Q259) Which pair of systems jointly coordinate and integrate all the activities of the organs, so that they function
in a synchronized fashion? Show Answer

Q260) Photoreceptor cells that contains the light sensitive proteins are called Show Answer

Q261) The specific region of hypothalamus, responsible for physiological sweat secretion is Show Answer

Q262) A 22 years student goes to his ophthalamologist. He has problem in reading books because he is
not be able to contract his Show Answer

Q263) A structure of neuron comprises of Show Answer

Q264) The process of response to a peripheral nervous stimulation, that occurs involuntarily is called Show Answer

Q265) The adult human eyeball is nearly a ….. structure Show Answer

Q266) The sympathetic and parasympathetic neural system combines to form Show Answer

Q267) Choose the correct non-protein amino acid from the given option.
Show Answer

Q268) Which of the following parts of a neuron is covered by fatty sheath? Show Answer

Q269) The system that transmits impulses from CNS to skeletal muscles is Show Answer

Q270) The pressure on either sides of the ear drum gets equalized by
Show Answer

Q271) Which is a part of spinal cord?
Show Answer

Q272) Mark the following statements as true/false and choose the correct option from the codes given below
I. Neuroglial cells are the packing and supporting cells found in the brain and spinal cord
II. Oligodendrocytes is a category of glial cells that forms myelin sheaths around the axon
III. Microglia provides mechanical support to the neurons
IV. Astrocytes communicate with one another through potassium channels Show Answer

Q273) For quick coordination, our neural system is organized through Show Answer

Q274) Saltatory conduction occurs in
Show Answer

Q275) Action of lysozyme is Show Answer

Q276) The process through which two or more organs interact and complement the functions of one another, is called Show Answer

Q277) Skeletal muscles are controlled by Show Answer

Q278) Yellow spot of eye is known for Show Answer

Q279) Middle ear of humans contains ossicles, i. e.,
Show Answer

Q280) Mechanism of neural coordination involves Show Answer

Q281) Which converts short time memory into long time remembrance? Show Answer

Q282) Read the following statements.
I.Preganglionic nerve fibres of III, VII, IX and X cranial nerves are a part of the parasympathetic
nervous system
II.V,VII, IX and X cranial nerves are mixed nerves.
III.Trochlear nerves are the largest cranial nerves.
IV.Abducens nerves are motor nerves and originate from the Gasserian ganglia.
Which of the above statements are correct?
Show Answer

Q283) There are two types of photoreceptor cells, i. e., …A… and …B… . These cells contains photopigments
Here, A and B refers to Show Answer

Q284) Which is not a reflex action? Show Answer

Q285) A nerve impulse is transmitted from one neuron to another through the junctions called
Show Answer

Q286) The afferent nerve fibres transmit impulse Show Answer

Q287) Which of the damaged cells cannot be repaired? Show Answer

Q288) The system that transmits impulse from the CNS to the involuntary organs and smooth muscles of the body Show Answer

Q289) Identify the basic functions of neural system Show Answer

Q290) How many laminae are present in the grey matter of spinal cord? Show Answer

Q291) Number of cranial nerves in frog Show Answer

Q292) Reflex action is controlled by Show Answer

Q293) Vitreous chamber, which is filled by vitreous humor is the space
Show Answer

Q294) Organ of Corti is found in Show Answer

Q295) During repolarisation of nerve Show Answer

Q296) Choose the incorrect options regarding white matter of the brain
I. White matter of the brain is white in colour
II. White matter of the brain is white in colour but sometimes it is found to be grey
III. White matter of the brain is mostly formed by medullated nerve fibres
IV. White matter of the brain is formed of cell bodies of nerve fibres Show Answer

Q297) Which of the following neuron is also called excitor neuron?
Show Answer

Q298) Brain and spinal cord, combinely form the Show Answer

Q299) Nerve cells are the part of Show Answer

Q300) Spinal cord is protected by Show Answer

Q301) A person is wearing spectacles with concave lenses for correcting vision. While not using the glasses, the image
of a distant object in his case will be formed?
Show Answer

Q302) On the basis of nature of nerve fibres, the nerves are
Show Answer

Q303) Which of the following system provides the fastest means of communication within the body?
Show Answer

Q304) The correct sequence of meetings of brain from outside to inside is Show Answer

Q305) Which of the following features show antagonism over a particular organ?
Show Answer

Q306) The cutaneous plexus and the papillary plexus consists Show Answer

Q307) The velocity of action potential propagation Show Answer

Q308) Anterior choroid plexus is present on the Show Answer

Q309) Retina of eye is analogous to which part of camera? Show Answer

Q310) …….. is not involved in knee-jerk reflex Show Answer

Q311) Synaptic knob is bulb-like structure which is present Show Answer

Q312) Autonomic nervous system affects Show Answer

Q313) The PNS comprises of Show Answer

Q314) Read the following statements carefully and select the correct option
I. The medulla is connected to the spinal cord
II. Medulla contains controlling centres for respiration, cardiovascular reflexes and gastric secretion
III. Cerebellum has very convoluted surface in order to provide the additional space for more neurons
Show Answer

Q315) The respiratory rhythm centre is present in the Show Answer

Q316) Which of the following is the correct function of endocrine system with reference to chemical
coordination? Show Answer

Q317) Maintenance of the ionic gradients across the resting membrane is done by the Show Answer

Q318) How many pairs of cranial nerves are found in humans? Show Answer

Q319) Which part of the brain is involved in loss of control when a person drinks alcohol? Show Answer

Q320) Ependymal cells Show Answer

Q321) In the blind spot, where the optic nerves leave the eyes Show Answer

Q322) Association areas of the brain are Show Answer

Q323) Study of structure, functions and disease of the nervous system is called
Show Answer

Q324) Which of the following statements are correct for RAS?
I. It screens sensory information
II. It is important in overall activation and arousal
III. It is concerned with involuntary movements
IV. It is the seat of learning, memory, reasoning and creative ability
Show Answer

Q325) Which is not a part of hindbrain? Show Answer

Q326) Which of the following statements are correct for iris?
I. The ciliary body extends forward to form iris
II. It is pigmented and opaque structure
III. It is the visible coloured portion of the eye
Choose the correct option Show Answer

Q327) Brain depends on blood for the supply of Show Answer

Q328) In the axon of motor nerve fibre, the nerve impulse travels Show Answer

Q329) Rods and cones are present in Show Answer

Q330) Synaptic vesicle is found in Show Answer

Q331) Which one of the following is an example of negative feedback loop in humans? Show Answer

Q332) The brain can be divided into Show Answer

Q333) Under prolonged starvation, brain receives energy from Show Answer

Q334) Coiled portion of the labyrinth is called Show Answer

Q335) Pneumotaxic centre is present in Show Answer

Q336) Sympathetic nervous system induces Show Answer

Q337) Which of the following is correct in case of chemical synapses?
I. The membranes of the pre and postsynaptic neurons are separated by a gap called synaptic cleft
II. Chemicals called neurotransmitters are involved in the transmission of impulses
III. Impulse transmission in chemical synapse is faster than that across an electrical synapse
IV. Chemical synapses are rare in our system Show Answer

Q338) What used to be described as Nissl’s granules in a nerve cell are now identified as? Show Answer

Q339) Which of the following is known as the site of information processing and control? Show Answer

Q340) The human neural system comprises Show Answer

Q341) Association areas are regions found in Show Answer

Q342) A neuron is a …… structure Show Answer

Q343) Photoreceptor cells of human eye are Show Answer

Q344) Parkinsonism is related with Show Answer

Q345) Protein found in eye lens is
Show Answer

Q346) The nervous tissue forms the nervous system in animals. Which of the following is correct about its origin? Show Answer

Q347) Which part of the human brain is largest? Show Answer

Q348) A transparent crystalline structure which is held in place by ligaments attached to the ciliary body, is called the Show Answer

Q349) The most appropriate definition for neuroglial cells are that they are Show Answer

Q350) Brain controls the Show Answer

Q351) Myelin sheath is derived from Show Answer

Q352) The forebrain consists of Show Answer

Q353) In humans, pneumotaxic centre is present in Show Answer

Q354) Hypothalamus controls
I. urge for eating and drinking
II. thermoregulation
III. hormones production that regulates the secretion of pituitary gland
IV. creative thinking and consciousness Show Answer

Q355) Which centre is stimulated during increase in body temperature? Show Answer

Q356) Give movements are controlled by
I. Gastrointestinal movement
II. Pancreatic movement
III. Tongue movement
Select the correct option Show Answer

Q357) Which one is correct regarding the ear and hearing? Show Answer

Q358) Given below the hormones present in human body
I. Cortisone
II. Acetylcholine
III. Epinephrine
Choose the correct option regarding these hormones Show Answer

Q359) In dark adaptation,
Show Answer

Q360) Dreaming occurs in Show Answer

Q361) Node of Ranvier is found in Show Answer

Q362) Aqueous and vitreous humour are divided by Show Answer

Q363) Cerebellum is concerned with the
Show Answer

Q364) The TV cranial nerve is
Show Answer

Q365) By which nervous system and of what type, the blood is supplied into visceral organs? Show Answer

Q366) Light falls on retina and its amount is regulated by Show Answer

Q367) Blind spot is called to because of Show Answer

Q368) If dorsal nerve of spinal cord is broken down then Show Answer

Q369) Arrange the given structures in the correct sequence of pathway of light from outside to inside the eyeball
of human eye
I. Lens
II. Aqueous humour
III. Vitreous humour
IV. Cornea
Choose the correct sequence Show Answer

Q370) Which of the following is not correct for rods?
I. Twilight vision is the function of the rods
II. It is responsible for daylight vision sometimes
III. The rods contain a protein called rhodopsin
IV. Rods are photoreceptor cells
Choose the correct option Show Answer

Q371) Three major components of human eyeball are Show Answer

Q372) Which of the following is not correctly matched? Show Answer

Q373) When we do physical exercises, the energy demand is increased for Show Answer

Q374) Choose the correct statements about Nissl’s granules from the codes given below
I. There are regular masses of ribosomes
II. There are irregular masses of ribosomes and ER
III. There are granular bodies
IV. They synthesise proteins in the cell Show Answer

Q375) Olfactory lobes of man are
Show Answer

Q376) Ampulla of Lorenzini are thermoreceptors which are found in Show Answer

Q377) Vertebrate brain differentiates from Show Answer

Q378) The choroid layer of human eye is
Show Answer

Q379) Which of the following is correct for pupil of human eye?
I. It is the aperture surrounded by the iris
II. The diameter of pupil is regulated by muscle fibres of iris
III. It is a transparent crystalline structure attached to the ciliary body
The correct option is
Show Answer

Q380) Which cranial nerve gives out a number of branches?
Show Answer

Q381) The …A… receives signal from a sensory organ and transmits the impulse via a dorsal nerve root into the
CNS (at the level of spinal cord) while the …B… carries signals from …C… to the …D…
Choose the correct option for A, B, C and D to complete the given statement Show Answer

Q382) Which one of the following cranial nerves is carrying the nerve fibres originating from the
Edinger-Westphal nucleus? Show Answer

Q383) When we do physical exercises, the energy demand is
Show Answer

Q384) Which part of human brain is concerned with the regulation of body temperature? Show Answer

Q385) Identify the correct sequence of organs/regions in the organisation of human ear as an auditory
mechanoreceptor organ.
Show Answer

Q386) Thalamus is a structure wrapped by cerebrum, is
Show Answer

Q387) When different cones of human eye are stimulated equally, a sensation of …… light is produced Show Answer

Q388) Ultra violet radiation from sun causes which of the following disorder of eyes?
Show Answer

Q389) Which of the following statements are correct about the cortex of cerebum? Choose the correct codes given
below
I. It consists of grey matter
II. It shows prominent folds
III. It consists of white matter
IV. It contains motor areas, sensory areas and association areas
Show Answer

Q390) The vestibular apparatus of human ear is composed of Show Answer

Q391) Which one of the following is the correct difference between rod cells and cone cells of retina? Show Answer

Q392) Human tears contains an enzyme Show Answer

Q393) Which of the following statements are correct for a nerve cell?
I. Each neuron has a cell body
II. Each neuron has a single axon
III. Each neuron has a variable number of dendrites
IV. Neurons are the functional units of nervous system
Select the correct option Show Answer

Q394) Structurally what are olfactory nerve cells? Show Answer

Q395) Which of the following is cochlear duct?
Show Answer

Q396) Which of the following is the part of midbrain of rabbit? Show Answer

Q397) Medulla oblongata is originated from Show Answer

Q398) The forebrain develops into Show Answer

Q399) Which of the following statement is correct for Iter? Show Answer

Q400) ‘Adaptation’ of eyes in dark is due to Show Answer

Q401) Which of the following statements is correct regarding receptors in the skin? Show Answer

Q402) Nerve impulse travels faster in Show Answer

Q403) If an organism has more rods, it will Show Answer

Q404) The cell body of neuron contains of Show Answer

Q405) Connection between axon and dendrite is Show Answer

Q406) On postsynaptic membrane, the new potential developed is
Show Answer

Q407) The cranial nerve that goes to the external rectus muscle is Show Answer

Q408) Number of spinal nerves in rabbit is Show Answer

Q409) The supporting and nutritive cells found in the brain are Show Answer

Q410) Which of the following substances leads to the inhibition of central nervous system?
Show Answer

Q411) Which part of human ear is concerned with hearing?
Show Answer

Q412) Fovea in the eye is a central pit in the yellowish pigmented spot called Show Answer

Q413) Which foramen is paired in mammalian brain? Show Answer

Q414) Dendrites transmit impulses towards the Show Answer

Q415) Centre for thinking and learning is present in which part of brain? Show Answer

Q416) The reflex arc, which is made of two neurons is known as Show Answer

Q417) Bipolar neurons are found in the Show Answer

Q418) During the conduction of a nerve impulse, the action potential results from the movement of Show Answer

Q419) Bipolar neurons occur in Show Answer

Q420) Which one of the following statements is correct? Show Answer

Q421) Cerebellum of brain is responsible for Show Answer

Q422) Cornea transplant in humans is almost never rejected. This is because
Show Answer

Q423) In the following abnormalities of the eye, which one is serious condition that leads to blindness?
Show Answer

Q424) Synaptic knob possesses Show Answer

Q425) Which of the following poet is involved in interpreting an input, storing input information and
initiating a response in the light of similar past experiences? Show Answer

Q426) Which of the following is not related to the autonomic nervous system? Show Answer

Q427) The wall of the eyeball is composed of ….. layers
Show Answer

Q428) The total amount of cerebrospinal fluid in humans is Show Answer

Q429) Give the correct term for each of the following and choose the correct option from the codes given below
A. Axon or dendron, covered with one or two sheaths
B. Bundles of nerve fibres within the centralnervous system
C. Masses of neurons that lie in the peripheral nervous system
D. Masses of neurons clustered inside the central nervous system Show Answer

Q430) The amount of CSF in the cranial cavity is Show Answer

Q431) Inside the skull, the brain is covered by Show Answer

Q432) The rods contains a purplish-red protein called Show Answer

Q433) Which of the following prevents internal reflection of light within the eye? Show Answer

Q434) Aqueous chamber which is filled by aqueous humour is the space Show Answer

Q435) Human ear can be divided into Show Answer

Q436) Which is an example of conditioned reflex? Show Answer

Q437) Glucose and oxygen are required by brain for constant supply of energy to control the functions of our
body organs.
What will be the consequences if brain is deprived of oxygen and glucose?
I. Brain deprived of oxygen for just 5 minutes will get permanently damaged
II. Glucose is important in the nerve impulse conduction
III. One side of brain is unable to know, what the other side is doing, when it is deprived of oxygen
IV. Mental confusion will results if brain is deprived of glucose Show Answer

Q438) The potential difference across the membrane of nerve fibre when it does not shown any
physiological activity is called resting potential. It is about Show Answer

Q439) Which is the visible coloured portion of the eye? Show Answer

Q440) The anterior portion of sclera is called Show Answer

Q441) Arachnoid membrane is Show Answer

Q442) Cells of Schwann are associated with Show Answer

Q443) Reflex action involves Show Answer

Q444) In humans, tympanic membrane is composed of connective tissues which is covered with Show Answer

Q445) At blind spot Show Answer

Q446) Wax gland present in the human ear canal is called Show Answer

Q447) Yellow spot is found in Show Answer

Q448) Function of ear ossicles in human is Show Answer

Q449) Sclera of human eye is composed of Show Answer

Q450) The nerve centres which control the body temperature and the urge for eating are controlled by Show Answer

Q451) Involuntary activities of the body are controlled by Show Answer

Q452) The cavity in the region of diencephalon in the brain of rabbit is called Show Answer

Q453) Which one is correct about the focusing of the eye? Show Answer

Q454) The part of the brain where the centre for hunger and thirst is located is Show Answer

Q455) Given below are different components of reflex are
I. Effector organ
II. Interneuron
III. Motor neuron
IV. Sensory neuron
V. Sensory receptor
Arrange these in correct order of action potential that follows a sensory receptor stimulation Show Answer

Q456) Internal ear is filled with Show Answer

Q457) At the posterior pole of the eye lateral to the blind spot, there is a yellowish pigmented spot called Show Answer

Q458) The electrical potential difference between outside and inside of a nerve axon before excitation is
known as
Show Answer

Q459) Which of the following statement is incorrect? Show Answer

Q460) Taste area lies in the Show Answer

Q461) Functions of association areas in cerebral cortex includes Show Answer

Q462) In which of the following, Nissl’s granules are found in? Show Answer

Q463) The purplish red pigment rhodopsin contained in the rods type of photoreceptor cells of the
human eyes is a derivative of Show Answer

Q464) The functions of the organs/organ system in our body must be coordinated to maintain …….
Complete the given statement with reference to NCERT textbook Show Answer

Q465) Cerebral hemispheres of rat are connected by
Show Answer

Q466) Multipolar neurons are found in the Show Answer

Q467) The system, responsible for providing an organized network of point to point connections for a quick coordination, is called Show Answer

Q468) The …… nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon Show Answer

Q469) The black pigment layer in human eye, that reduces internal reflection is located in Show Answer

Q470) Which of the following is not an organ of central nervous system? Show Answer

Q471) Dilatation of pupil takes place by Show Answer

Q472) Ina myelinated neuron, two adjacent myelin sheaths are separated by gaps called Show Answer

Q473) The gaps between two adjacent myelin sheaths is called Show Answer

Q474) Sympathetic nerve accelerates heart beat due to Show Answer

Q475) Which of the following does not act as a neurotransmitter? Show Answer

Q476) Odd nerve is Show Answer

Q477) Axons can be Show Answer

Q478) Schwann cells, form a myelin sheath around the Show Answer

Q479) Which of the following nerves is purely motor nerve?
Show Answer

Q480) Choroid plexus functions to produce Show Answer

Q481) Along with hypothalamus, limbic system is involved in the
I. thermoregulation
II. regulation of sexual behavior
III. expression of emotional reactions (e. g., excitement, pleasure, rage and fear)
IV. motivation
Choose the correct option Show Answer

Q482) Alzheimer’s disease in human is associated with the deficiency of Show Answer

Q483) Which of the following is a neuroglial cell? Show Answer

Q484) Outer ear of humans consists of Show Answer

Q485) In eye donation, which one of the following parts of donor’s eye is utilized? Show Answer

Q486) At the neuromuscular function Show Answer

Q487) Lipofucsin granules are found in
Show Answer

Q488) Brain stem is formed by Show Answer

Q489) Corti’s organs is present in Show Answer

Q490) Following are the steps of mechanism of vision in random order
I. Neural impulses are analysed and image formed on retina is recognised by visual cortex
II. Membrane permeability changes
III. Ganglion cells are excited
IV. Bipolar cells are depolarized
V. Action potential (impulse) is transmitted by optic nerves to visual cortex
VI. Potential differences are generated in the photoreceptor cells
VII. Light energy causes a change in shape of rhodopsin, leading to the dissociation of retinal (an aldehyde
of vitamin-A) from opsin (a protein)
VIII. Structure of opsin is changed
Choose the correct sequence Show Answer

Q491) Nerve cells do not divide because they do not have Show Answer

Q492) Vitreous humour is
Show Answer

Q493) Sense of smell is perceived by Show Answer

Q494) In the central nervous system Show Answer

Q495) Meissner’s corpuscles occur in Show Answer

Q496) The wall of the human eyeball is composed of Show Answer

Q497) Thermoregulatory centre of human body is associated with Show Answer

Q498) The axons transmit nerve impulses from the cell body to a Show Answer

Q499) Grey matter of the brain is
I. present outside the white matter
II. matter containing medullated nerve fibres
III. grey in colour
IV. matter containing cell bodies
Which of the statements mentioned above are correct? Show Answer

Q500) In the central nervous system, myelinated fibres form the …, while the non-myelinated fibre cells
form the …… Show Answer

Q501) Pneumotaxic centre which can moderate the functions of the respiratory rhythm centre is present
at Show Answer

Q502) Arrange the following events in a correct order that lead to the formation of an auditory impulse in human
ears from the codes given below
I. Vibration is transferred from the malleus to the incus and then to stapes
II. Basiliar membrane moves up and down
III. Nerve impulse is transmitted by cochlear nerve to auditory cortex of brain for impulse analysis and
recognition
IV. Sound waves pass through ear canal
V. Stereocilia of hair cells of organ of Corti rub against tectorial membrane
VI. Sound waves causes ear drum to vibrate
VII. Nerve impulse is generated
VIII. Vibrations move from fluid of vestibular canal to the fluid tymapanic canal
IX. Membrane at oval window vibrates Show Answer

Q503) Which is the largest body cell? Show Answer

Q504) Which one of the following pairs of structures distinguishes a nerve cell from other types of cell? Show Answer

Q505) The medulla contains centres which control Show Answer

Q506) Cranium is the protective covering of Show Answer

Q507) The number of cranial nerves in frog and man is Show Answer

Q508) The chemical used by doctors to dilate pupil for examination is Show Answer

Q509) Identify the wrong pair Show Answer

Q510) A synapse is formed by the membrane of Show Answer

Q511) A neuron is said to be in resting state when,
I. it is not conducting any impulse
II. plasma membrane is electrically positive outside and negative inside
III. the nerve fibre is stimulated mechanically or electrically
IV. plasma membrane is negative outside and positive inside
The correct option is
Show Answer

Q512) Patients suffering from cholera are given a saline drip because Show Answer

Q513) Which part of retina consists of only cones? Show Answer

Q514) Following are some nerves. Categorise them as afferent, efferent and mixed nerves according to their
nature and than choose the correct option from the codes given below
I. Trigeminal nerves
II. Occulomotor nerves
III. Olfactory nerves
IV. Auditory cranial nerves
V. Hypoglossal cranial nerves
VI. Spinal accessory cranial nerves
VII. Optic nerves
VIII. Abducens nerves
IX. Pathetic nerves
X. Glossopharyngeal nerves
XI. Vagus cranial nerves
XII. Spinal nerves
XIII. Facial nerves Show Answer

Q515) The glands, which help on absorbing odoriferous substances to stimulate olfactory nerve are Show Answer

Q516) Which of the following is motor nerve? Show Answer

Q517) True about electrical synapses
I. pre and postsynaptic neurons are in very close proximity
II. pre and postsynaptic neurons are separated by synaptic cleft
III. impulse transmission is very fast
IV. electrical synapses are common in our system
Select the correct option Show Answer

Q518) If frog’s brain is crushed, even than its leg moves on pinpointing. It called as Show Answer

Q519) Which of the following statements is correct about the nodes of ranvier? Show Answer

Q520) Inner part of cerebral cortex is referred as
Show Answer

Q521) Brains acts as the …A… and …B… system. Here, A and B refer to
Show Answer

Q522) Old age far sightedness is a defect of eye in which
Show Answer

Q523) Muller’s fibres occurs in Show Answer

Q524) Memory is the responsibility of Show Answer

Q525) Intercellular communication in multicellular organism occurs through Show Answer

Q526) Which of the following statements are is correct?
I. Dendrites are long fibre, with branched distal end
II. Axons are short fibres which arise from the cell body
III. Cell body of a neuron contains cytoplasm, nucleus with cell organelles and Nissl’s granules
IV. The dendrites transmits nerve impulses away from the cell body to a synapse
The correct option is
Show Answer

Q527) The rods and cones of the retinal layer of eye are modified Show Answer

Q528) The order of the three layers of cells in the retina of human eye from inside to outside is
Show Answer

Q529) Synaptic vesicles contains chemicals called
Show Answer

Q530) The neurons may be Show Answer

Q531) The outermost covering of brain is Show Answer

Q532) In humans, tympanic membrane (ear drum) separates lympanic cavity from Show Answer

Q533) At their resting stage, the body cells exhibit a potential of -5 to -100 mV known as Show Answer

Q534) Our paired eyes are located in sockets of the skull called
Show Answer

Q535) For the maintenance of ionic gradients across the resting membrane, the sodium-potassium pump
transports Show Answer

Q536) Comprehension of spoken and written words take place in the region of Show Answer

Q537) Excessive stimulation of vagus nerve in humans may lead to Show Answer

Q538) Pupil, is the aperture surrounded by the Show Answer

Q539) In which direction, cristae of rabbit ear helps in maintaining balance? Show Answer

Q540) The inner parts of cerebral hemispheres and a group of associated deep structures like amygdala,
hippocampus, etc. form a complex structure called
Show Answer

Q541) Rhodopsin is also known as visual Show Answer

Q542) What are the two types of nervous system cells? Show Answer

Q543) Which of the following statements is true? Show Answer

Q544) Nerve cells do not possess Show Answer

Q545) Which of the following is an example of conditioned reflex? Show Answer

Q546) Select the correct arrangement of neural organization, according to the increasing degree of complexity Show Answer

Q547) ‘Organ of Jacobson’ helps in Show Answer

Q548) The nerve cells exercise its control by sending electrical signals called Show Answer

Q549) Synapse is the connection between Show Answer

Q550) A person went to ophthalmologist. He had a problem in reading because he was not able to
Show Answer

Q551) The size of pupil is controlled by the Show Answer

Q552) Which of the following is correct regarding electrical synapses?
I. Pre and postsynaptic membrane neurons are in very close proximity at electric synapse
II. Electric current are involved in the transmission of impulses
III. Transmission of an impulse across electrical synapses is very similar to impulse conduction along a
single axon
IV. Impulse transmission is always faster in electric synapse than that across a chemical synapse
V. Electrical synapses are rare in our system
The correct option is Show Answer

Q553) Which of the following is present in rod cells and useful in night vision? Show Answer

Q554) …….. nerve fibre is enclosed by a Schwann cell that do not form a myelin sheath around the axon
Show Answer

Q555) In the resting stage of a neuron, concentration gradient generates due to Show Answer

Q556) Scala vestibuli, scala media and scala tympani of human ear contains Show Answer

Q557) An action potential in the nerve fibre is produced when positive and negative charges on outside
and the inside of the axon membrane are reversed because Show Answer

Q558) Nissl’s granules are found in Show Answer

Q559) Which statements are wrong?
I.Synaptic cleft of neurons secrete adrenaline.
II.Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around
the axon.
III.Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form myelin sheath.
IV.Spinal cord and cranial nerves are made of non-myelinated nerve fibres.
Of the four statements Show Answer

Q560) The central information processing organ of our body is Show Answer

Q561) Which of the following statements are correct for cones of human eye?
I. Cones are responsible for daylight vision
II. Cones are responsible for colour vision
III. Cones are responsible for photopic vision
Choose the correct option Show Answer

Q562) During synaptic excitation Show Answer

Q563) Which of the following is correct for the pairs of cervical nerves and number of cervical vertebrae
respectively?
Show Answer

Q564) The nerve fibre in its resting stage is
Show Answer

Q565) Movement of tongue muscle is controlled by
Show Answer

Q566) Alimentary canal is supplied by Show Answer

Q567) The retina of nocturnal birds contain Show Answer

Q568) What is the space between arachnoid and piamater? Show Answer

Q569) Choose the odd pair out in the following. Show Answer

Q570) Sympathetic nervous system controls Show Answer

Q571) Dendrites are Show Answer

Q572) Sensation of stomach pain is due to
Show Answer

Q573) …A… is attached to the tympanic membrane and the …B… is attached to the oval window of the cochlea
Choose the correct option for A and B Show Answer

Q574) In which part of the brain, satiety centres is present? Show Answer

Q575) Which of the following is correct for lens focusing while seeing distant object? Show Answer

Q576) The cell body of neuron contains certain granular bodies called
Show Answer

Q577) Pinna Show Answer

Q578) Light sensitive cells of eye are present in
Show Answer

Q579) Which of the following statements are incorrect?
I. The space between cornea and lens is filled with watery fluid
II. Rhodopsin is red protein, hence called visual red
III. The anterior transparent portion of choroid is called cornea
IV. When all cones are stimulated equally, a sensation of no light (dark) is produced
Choose the correct option Show Answer

Q580) In Hydra, neural organization is comprises of Show Answer

Q581) Schwann cell is found around Show Answer

Q582) The human ear is equipped to register sounds of frequencies between
Show Answer

Q583) I. The endocrine system provides chemical integration through hormones
II. The neural system provides an oragnised network of point to point connection for a quick coordination
III. The neural organization is very complex in lower invertebrates
IV. The human neural system includes CNS and PNS
Select the correct statements Show Answer

Q584) The tract of nerve fibres which connects the cerebral hemisphere is Show Answer

Q585) Eustachian canal connects Show Answer

Q586) Which part of CNS mainly controls the reflex? Show Answer

Q587) Respiratory control centre is Show Answer

Q588) Olfactoreceptors are Show Answer

Q589) In nerve fibre, the impulses transmits quickly due to Show Answer

Q590) Labyrinth, fluid-filled inner ear consists of Show Answer

Q591) The sound producing organ of bird is Show Answer

Q592) Reflex arc in the nervous system means Show Answer

Q593) Salivation in man is under the control of Show Answer

Q594) Static equilibrium is maintained by Show Answer

Q595) Human ears perform sensory functions. These are Show Answer

Q596) When a neuron is in resting state, i.e., not conducting any impulse, the axonal membrane is Show Answer

Q597) In humans, gustatoreceptors are found in Show Answer

Q598) ‘Pons Varolii’ connects the Show Answer

Q599) There are different types of cones to human eye that responds to Show Answer

Q600) Unipolar neurons can be seen in the Show Answer

Q601) Which is thickened to form organ of Corti? Show Answer

Q602) Which of the following cells are associated with identification of colours in bright light?
Show Answer

Q603) Synapses are of two types namely …A… synapses and …B… synapses. Here A and B refers to Show Answer

Q604) Select the correct statements Show Answer

Q605) Damage to hearing is caused by sound which exceeds Show Answer

Q606) Gustatoreceptors are
Show Answer

Q607) Choroid becomes thick in the anterior part of eye to form the
Show Answer

Q608) A man is admitted in a hospital. He is suffering from an abnormally low body temperature, loss of
appetite and extreme thirst. His brain scan would probably show a tumour in Show Answer

Q609) Eustachian tube connects …A… cavity with …B… Choose the correct option for A and B Show Answer

Q610) The autonomic nervous system has control over Show Answer

Q611) How many pairs of cranial nerves originate from the brain of rabbit? Show Answer

Q612) The gelatinous, elastic membrane covering the sensory hair cells of the human ear is known as Show Answer

Q613) The joint between axon of a neuron and the dendrite of the next is called Show Answer

Q614) Reflex action is controlled by
Show Answer

Q615) Cerebellum portion of brain is Show Answer

Q616) Choose the correct option from the codes given below
I. Nearly 50% of all brain cells are neuroglia
II. Oligodendrocytes plays a role in the maintenance of the blood brain barrier
III. Microglia engulf microbes and cellular debris
IV. Astrocytes, oligodendrocytes and microglia, are three different types of neuroglial cells Show Answer

Q617) The bones lie inferior to the parietal bones and meet them at the squamous sutures is
Show Answer

Q618) Which part of brain is associated with strong emotions? Show Answer

Q619) The human brain is well protected by the Show Answer

Q620) A wave of action potential is termed as
Show Answer

Q621) The sensations of different colours in human eye is produced due to the combination of Show Answer

Q622) Olfactory smell area is present in Show Answer

Q623) The function of vagus nerve innervating the heart is to Show Answer

Q624) Aqueduct of Sylvius occurs in Show Answer

Q625) Nerve impulse initiates with the movement of Show Answer

Q626) Given below is a table comparing the effects of sympathetic and parasympathetic nervous system
for four features (a-d).which one feature is currently described? Show Answer

Q627) What is the location of hypothalamus? Show Answer

Q628) Which is a bridge between nervous system and endocrine system?
Show Answer

Q629) Broca’s area is connected with Show Answer

Q630) Myelinated fibres of the tract of pons forms Show Answer

Q631) The PNS includes Show Answer

Q632) 31 pairs of spinal nerves are known in man. Select the option which shows its correct classification into
different groups Show Answer

Q633) Cerebellum and medulla together constitutes
Show Answer

Q634) Hindbrain includes Show Answer

Q635) The complex system of the inner ear associated with maintenance of body balance is Show Answer

Q636) The one way or unidirectional transmission of nerve impulse in nerve cells is due to the presence
of Show Answer

Q637) Post-ganglionic nerve fibres of sympathetic system are Show Answer

Q638) The membrane, which cover the brain and spinal cord is/are called Show Answer

Q639) Which one of the following is not a part of ear? Show Answer

Q640) The …A… is a structure located on the …B… which contains …C… that acts as auditory receptors
Choose the correct option for A, B and C Show Answer

Q641) The posterior part of the retina, which is just opposite to the lens is Show Answer

Q642) Corpus callosum connects Show Answer

Q643) The innermost layer of the human eye is Show Answer

Q644) Which function will be lost due to damage of occipital lobe? Show Answer

Q645) Neuron is composed of Show Answer

Q646) Trigeminal nerve in frog is of Show Answer

Q647) Vomiting centre is located in the Show Answer

Q648) Mouth becomes watery when we look on the delicious food is due to Show Answer

Q649) The sequence of ear ossicles from outside to inside is Show Answer

Q650) In rhodopsin, the vitamin present is Show Answer

Q651) In human eyes, colour perception is done by Show Answer

Q652) Path of reflex action is Show Answer

Q653) Statement 1: Neurons regulates the endocrine activity but not vice − versa
Statement 2: Endocrine gland regulates neural activity and neural activity regulates endocrine gland Show Answer

Q654) Statement 1: Arrival of an impulse at the axon terminal, stimulates the release of neurotransmitters in
the synaptic cleft
Statement 2: These neurotransmitters are responsible for the opening of ion channels Show Answer

Q655) Statement 1: During physical exercise, the demand of oxygen is increased, which competes the lungs to
increase the rate of respiration and heart to increase the blood flow for proper supply of
oxygen
Statement 2: Coordination is the process through which two or more organs interact and complement
the functions of each other Show Answer

Q656) Statement 1: The presynaptic neuron transmits an impulse (action potential) across the synaptic cleft
to the postsynaptic neuron
Statement 2: For the transmission of impulses at synapses, chemicals called neurotransmitters are
responsible
Show Answer

Q657) Statement 1: Iris muscles show both dilation as well as constriction of pupil
Statement 2: It is sympathetic and parasympathetic nervous system which have antagonistic functions Show Answer

Q658) Statement 1: The cerebral cortex is referred to as the white matter of the brain
Statement 2: It is due to the high concentration of neuron cell bodies in it Show Answer

Q659) Statement 1: Organ of Jacobson is well developed in snakes
Statement 2: Organ of Jacobson is well developed in humans Show Answer

Q660) Statement 1: Humans can sense changes in the environment
Statement 2: Sensory organs detect all types of changes in environment Show Answer

Q661) Statement 1: Neuroglial cells are known as the packing cells of brain
Statement 2: A type of neuroglial cells forms the myelin sheath around axon Show Answer

Q662) Statement 1: Neurons are excitable cells
Statement 2: The membrane of neurons in a depolarized state is responsible for excitability Show Answer

Q663) Statement 1: The membrane of a neuron is polarized
Statement 2: Ion channels on the neural membrane are selectively permeable to different ions Show Answer

Q664) Statement 1: Cerebral of cortex appears white
Statement 2: It is because of the myelin sheath covering of the tracts Show Answer