Practice Test

Q1) Which of the following blood vessels in the circulatory system of frog has more deoxygenated blood? Show Answer

Q2) Which one indicates hypertension or high blood pressure (BP) Show Answer

Q3) Choose the correct pathway on the transmission of impulse in the heart beat. Show Answer

Q4) Water circulatory system in found in
I. Sponge II.Hydra
III. Annelida IV. Starfish
V. Arthropoda
Choose the correct option Show Answer

Q5) In an open circulatory system Show Answer

Q6) Primary blood cells are formed in Show Answer

Q7) SAN can generate impulses Show Answer

Q8) An oval depression called fossa ovalis, is seen on Show Answer

Q9) Which of the following acts as ‘middle man of the body’? Show Answer

Q10) Pulse beat is measured from Show Answer

Q11) Which of the following is incorrect? Show Answer

Q12) Lymphatic system is an elaborated network of vessels which collect the Show Answer

Q13) In human heart, identify the correct statements a
I. Volume of both the atria is the greater than the volume and both ventricles
II. Volume of both the ventricle is greater than the volume of both the atria
III. Inter-ventricular septum separates the right and the left atria
IV. Atrio ventricular septum don’t separates the atrium and ventricle
Choose the correct option accordingly Show Answer

Q14) SAN generates an action potential which stimulates both the …A… to undergo a simultaneous contraction
called …B… . This increases the flow of the blood into the ventricles by about …C… percentage
Choose the correct option for A, B and C Show Answer

Q15) Which of the following can be considered as the blood bank of human body? Show Answer

Q16) Coagulation of blood in blood vessels in living body is prevented by Show Answer

Q17) Characteristic of open circulatory system
I. Blood flows in the open tissue space, the sinuses
II. Blood is in direct contact with the tissues cells
III. Blood flow is slow
IV. Blood pressure is high
Choose the option with characteristics Show Answer

Q18) In a healthy adult man the normal diastolic pressure is Show Answer

Q19) Which of the following are erythropoietic organs?
I. liver
II. lymph node
III. spleen
IV. white bone marrow
V. red bone marrow
Choose the correct option Show Answer

Q20) Prothrombin is Show Answer

Q21) Spiral valve is present in Show Answer

Q22) Choose the correct statements regarding the human blood
I. The volume of the blood in an adult is 5 L
II. It constitutes 30-35% of the total extracellular fluid
III. Glucose concentration in the blood is 50mg/100 mL
IV. Cholesterol concentration in the blood is 30 mg/100 mL
V. Urea level in the blood is 10 mg/100 mL
The option with correct statements is Show Answer

Q23) A doctor suggested not to have more than one child to a couple because Show Answer

Q24) Leucocytes are colourless due to Show Answer

Q25) In haemoglobin, which amino acid acts as blood buffer? Show Answer

Q26) Atrial diastole takes place when Show Answer

Q27) Exchange of gases, nutrient, etc., between the blood and the cells takes place through Show Answer

Q28) Formed elements present in the human blood are
I. erythrocytes II. leucocytes
III. platelets IV. plasma
V. plasma
Chooses the correct option Show Answer

Q29) The opening of auricles and ventricles on the right side is guarded by Show Answer

Q30) In humans, RBCs are formed in Show Answer

Q31) Bicuspid valves are found in between Show Answer

Q32) ECG is a graphical representation of the electric activity of the heart during Show Answer

Q33) Which is correct for artery? Show Answer

Q34) Human blood consists of Show Answer

Q35) Identify wheather the given statements are true or false for double circulation
I. It checks the mixing of oxygenated and deoxygenated blood
II. It carries only oxygenated blood
Choose the correct option accordingly Show Answer

Q36) Properties of human RBCs are
I. devoid of nucleus
II. formed in bone marrow
III. possess healing properties
IV. biconcave in shape
V. help in blood clotting
Choose the option with correct properties Show Answer

Q37) Erythrocytes of adult rabbit and other mammals are formed in Show Answer

Q38) Heart beat increases by Show Answer

Q39) Which of the following statement (s) is/are incorrect?
I. The AV node and the bundle of His constitute, the electrical link between the atria and the ventricles
II. The bundle of His is a bundle of electrical nodes which allows the ventricles to contract
III. The bundle of His is a group of fibres that carry the electrical impulses through the centre of the heart
IV. The bundle of His is located in the artrial region
Choose the correct option Show Answer

Q40) Blood pressure is controlled by Show Answer

Q41) Atherosclerosis is called Show Answer

Q42) Haemoglobin is Show Answer

Q43) In a healthy adult man, the normal diastolic pressure is Show Answer

Q44) During ventricular systole Show Answer

Q45) Pacemaker in heart is situated Show Answer

Q46) Haemolymph is the term used for the blood of the organism having Show Answer

Q47) The blood pumped by the …A… ventricle enters the …B… artery, whereas the …C… ventricle pumps blood
into the …D…
Choose the correct option for A, B, C and D Show Answer

Q48) The closed circulatory system is found in Show Answer

Q49) SA node is called the pacemaker of heart because Show Answer

Q50) A substance present over the surface of RBCs and is genetically heritable is called as Show Answer

Q51) Tachycardia is Show Answer

Q52) In amphibians and reptiles, the …A… atrium receives oxygenated blood from the gills/lung/skin and …B…
atrium gets the …C…. blood from other body parts
Choose the correct option for A, B and C Show Answer

Q53) Which blood vessels carry blood from different parts of your body to the heart? Show Answer

Q54) The vein that does not directly open into the heart is Show Answer

Q55) Which one of the following has an open circulatory system? Show Answer

Q56) Purkinje fibres are present in Show Answer

Q57) Which one of the following statements is correct regarding blood pressure? Show Answer

Q58) The heart muscles are Show Answer

Q59) Patient with unknown blood group needs immediate blood transfusion. In this case, which blood do you
suggest to give that patient immediately? Show Answer

Q60) The second step in the coagulation of blood is catalyzed by Show Answer

Q61) Sequence of electrical impulse in heart beat is Show Answer

Q62) In the ventricular diastole, the …A… valve closes. This causes the second heart sound …B… . Choose the
correct option for A and B Show Answer

Q63) Which of the given option is correct about blood groups and donor compatibility? Show Answer

Q64) Which of the following sentences is correct?
I. ECG is of a great clinical significance
II. Electrocardiograph is the recording of electrical changes during the cardiac cycle
III. To obtain a standard ECG, a patient is connected to the machine with 3 electrical electrodes (one to
each wrist and to the left ankle)
IV. Normal activities of the heart are regulated intrinsically
V. Electrocardiogram is the electrical activity of heart
The option with correct statements is Show Answer

Q65) A circulatory system, which is formed by capillaries and ends with capillaries is Show Answer

Q66) Blood leaving the liver and going towards heart is rich in Show Answer

Q67) Which is correct about blood clotting? Show Answer

Q68) Maximum amount of oxygen is lost from the blood in the Show Answer

Q69) Atherosclerosis is caused by deposition of Show Answer

Q70) Which of the following are located in tunica media of human blood vessels? Show Answer

Q71) Duration of a cardiac cycle is Show Answer

Q72) The myocardium is found in Show Answer

Q73) During each cardiac cycle, prominant sounds are produced which can be easily heard through stethoscope.
They are Show Answer

Q74) Neural centre in medulla oblongata can moderate the cardiac function through Show Answer

Q75) The normal level of haemoglobin per 100mL of blood in women is Show Answer

Q76) Systemic circulation is Show Answer

Q77) 72 beats per minute heart beat rate of man is controlled by Show Answer

Q78) Which one of the following is matching pair? Show Answer

Q79) Which of the following sequences is truly a systemic circulation pathway? Show Answer

Q80) Haemoglobin contains Show Answer

Q81) Atrial natriuretic hormone is produced by Show Answer

Q82) The branches of the nodal tissue, which give rise to minute fibres throughout the ventricular musculature
of the respective sides are called Show Answer

Q83) Heart sound ‘dup’ is caused due to closing of Show Answer

Q84) Which of the following is the correct pathway for propagation of cardiac impulse? Show Answer

Q85) ‘Bundle of His’ are Show Answer

Q86) Most abundant cells in the human blood are Show Answer

Q87) In diastole, heart is filled by Show Answer

Q88) Purkinje fibres are present in Show Answer

Q89) Cardiac output is Show Answer

Q90) If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially nonfunctional,
what will be the immediate effect? Show Answer

Q91) Ventricular systole occurs Show Answer

Q92) The important function of lymph is to Show Answer

Q93) In reptiles and amphibians, there is no clear cut separation of oxygenated and deoxygenated blood
because they have Show Answer

Q94) In heart cells, which one serves as a second messenger speeding up muscle cell contraction in response to
adrenaline? Show Answer

Q95) Lymphocytes (20-25%) are of two major types, B and T forms. They are responsible for Show Answer

Q96) Tricuspid valve is present in Show Answer

Q97) The first heart sound ‘Lubb’ occurs in which phase of the cardiac cycle? Show Answer

Q98) The largest RBCs have been seen in Show Answer

Q99) Universal donors and universal receipients are Show Answer

Q100) Which of the following matches correctly? Show Answer

Q101) A healthy individual has …A… grams of haemoglobin in every …B… mL of blood. These molecules plays a significant role in the transport of …C… gases.
Choose the correct option for A, B and C Show Answer

Q102) How many double circulations are normally completed by the human heart, in one minute? Show Answer

Q103) Maximum pressure of blood experienced during when blood enters from Show Answer

Q104) Which of the following events do not occur during joint diastole?
I. All four-chamber are in relaxed state
II. Tricuspid and bicuspid are open
III. Semilunar valves are closed
IV. Blood from the pulmonary veins and vena cava flows into the left and right ventricles, respectively
through the left and right atria
The correct option containing correct choice is Show Answer

Q105) Chordae tendinae are found in Show Answer

Q106) Source of thromboplastin in the human blood is Show Answer

Q107) Chordae tendinae Show Answer

Q108) Life span of RBCs is Show Answer

Q109) Formed element constitutes what percentage of the blood? Show Answer

Q110) Neural signals through the sympathetic nerves (ANS) can increase the rate of heart beat by Show Answer

Q111) Cardiac output is Show Answer

Q112) In bird and mammals, the oxygenated blood received by …A… and deoxygenated blood receive by …B… .The ventricles pump in out without any mixing up of oxygenated and deoxygenated blood
Choose the correct option for A and B Show Answer

Q113) Foramen ovale Show Answer

Q114) The name of the pace maker of heart is Show Answer

Q115) Ventricles are related to Show Answer

Q116) Which is largest among the given type of leucocytes? Show Answer

Q117) Which system has a major role in defence against infection? Show Answer

Q118) People living at sea level have around 5 million RBCs per cubic millimetre of their blood, whereas those
living at an altitude of 5400 metres have around 8 million. This is because at high altitude Show Answer

Q119) Which of the following does not control the heart beat? Show Answer

Q120) The graveyard of RBC is Show Answer

Q121) Angina occurs due to Show Answer

Q122) Autoexitable fibres/nodes are called Show Answer

Q123) Haemoglobin molecule is made up of Show Answer

Q124) The name Rh blood group is derived from Show Answer

Q125) A specialised cardiac musculature called …A… tissue is also distributed in the heart. A patch of this tissue is
present in the right upper corner of the right atrium called …B… . Another mass of this tissue is seen in the
lower left corner of the right atrium close to the atrio-ventricular septum called …C…
Choose the correct option for A, B and C Show Answer

Q126) Major proteins in the human blood are
I. fibrinogen II. globulins
III. albumins
Choose the correct combination of option Show Answer

Q127) Which of the following organs can be called a sort of ‘blood bank’? Show Answer

Q128) Prothrombinase is formed in the presence of Show Answer

Q129) The artery, which supplies blood to the pericardium is Show Answer

Q130) Example of Rh incompatibility is Show Answer

Q131) Which of the following causes degradation of RBCs? Show Answer

Q132) Granulocytes and agranulocytes are the two main cateogories of Show Answer

Q133) Systolic pressure in a normal human is Show Answer

Q134) RBCs have an average life span of Show Answer

Q135) According to Cascade theory of blood clotting, how many factors are required in the process of blood
clotting? Show Answer

Q136) Select the incorrect statements
I. Barr body is an another name for neutrophils
II. Agranulocytes are formed in the red bone marrow
III. Granulocytes are formed is the spleen and lymph node
IV. Lymphocytes exists as two major types, B and T lymphocytes
The correct option with incorrect statement is Show Answer

Q137) The valves, which allow blood to flow from the ventricles into the arteries and not in the opposite
direction are Show Answer

Q138) Study the following statements.
I.Plasma constitutes 45% of the human blood.
II.Albumin is a plasma protein, which helps in osmotic balance.
III.Factors responsible for the blood clotting process are present in the blood.
IV.Plasma without clotting factors is called serum.
IV.Minerals are not generally found in blood. Of the above statements Show Answer

Q139) Haemoglobin (Hb) transports oxygen from the lungs to tissues. The partial pressure of the oxygen in lungs
is different from that tissues. Each Hb can bind to up to four oxygen molecules. Suppose, we have an equal
number of Hb and oxygen molecules and all the oxygen molecules are in bounded form. Then, which of the
following is true? Show Answer

Q140) Which of the following plasma proteins is involved in the coagulation of blood? Show Answer

Q141) Which one has the thickest wall? Show Answer

Q142) Compare to blood our lymph has Show Answer

Q143) Parasympathetic neural signal decreases the cardiac output by Show Answer

Q144) In which one of the following pairs, the two items mean one and the same thing? Show Answer

Q145) Which one of the following human cells do not contain mitochondria? Show Answer

Q146) Identify the incorrect statements and correct choose the correct option accordingly
I. Interstitial fluid (tissue fluid) and lymph have almost similar composition
II. Lymph and interstitial fluid have no larger proteins and RBC
III. Exchange of the nutrients and gases, etc., between the blood and cells always occurs through tissue
IV. Interstitial fluid has the same mineral distribution as that of the plasma
V. Lymph can be defined as the blood minus RBC but has specialised lymphocytes Show Answer

Q147) Blood without corpuscles and fibrinogen is called Show Answer

Q148) Closed circulatory system is present in Show Answer

Q149) Papillary muscles are found in mammalian Show Answer

Q150) CAD stands for Show Answer

Q151) Blood pressure instrument records Show Answer

Q152) Heart of elephant is Show Answer

Q153) Blood is a Show Answer

Q154) Choose the correct statement about SA node
I. Located at lateral wall of the right atrium
II. Herat of heart
III. It initiates the rhythmic contractile activity of the heart and maintains it IV. It is called pace keeper of the heart
V. It is called pace maker of the heart
The option with correct statements is Show Answer

Q155) The systemic circulation provides nutrients, …A… and other essential substances to the …B… and takes
…C… and other harmful substances away for elimination
Choose the correct option for A, B, C and D Show Answer

Q156) Which of the following is first to receive lymphatic duct from legs? Show Answer

Q157) I. Atrioventricular valves
II. Semilunar valves
III. Right atrium
IV. Right ventricle
The correct pathway of RBC of from the option given below Show Answer

Q158) The number of valves that guard the opening at the origin of caroticosystemic aorta is Show Answer

Q159) Blood that flows from the lungs to the heart is bright red rather than dark red due to Show Answer

Q160) Components essential for RBC formation is Show Answer

Q161) What will happen if a Rh – ve person is exposed to the Rh + ve person? Show Answer

Q162) Erythroblastosis foetalis is a disease in which Show Answer

Q163) At high altitude, RBCs of human blood will Show Answer

Q164) Bilirubin is the breakdown product of Show Answer

Q165) Pace maker is Show Answer

Q166) The pH of blood is Show Answer

Q167) Manifestation of increase in the blood pressure of a person is called Show Answer

Q168) Lymph is a colourless fluid containing specialised Show Answer

Q169) The animal, which has oval RBCs is Show Answer

Q170) The difference between blood and lymph is Show Answer

Q171) ‘Heart of Heart’ is Show Answer

Q172) The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker
is to be grafted in him. It is likely that it will be grafted at the site of Show Answer

Q173) Refer the statements
I.Carbonic anhydrase is present in the erythrocytes.
II.In erythrocytes, the carbon dioxide combines with water and is transported Show Answer

Q174) Plasma is a straw coloured viscous fluid constituting nearly …A…% of the blood, …B…% of the plasma is
water and the protein constitutes …C…% of it.
Choose the correct option for the blanks A, B and C Show Answer

Q175) Coronary heart disease is due to the inadequate blood supply to Show Answer

Q176) Which one is correct? Show Answer

Q177) Bicuspid and tricuspid valve opens when Show Answer

Q178) Systolic pressure in adult human is Show Answer

Q179) Which of the following option describes all the components of human blood? Show Answer

Q180) Neutrophils are also called
I. acidophils
II. heterophils
III. polymorphs
Choose the option with suitable terms Show Answer

Q181) Grouping of ABO blood is based on the Show Answer

Q182) Individuals having Rh antigen are called Show Answer

Q183) Which of the following statement is incorrect about the lymph
I. Lymph is colourful as it has haemoglobin but no RBC II. The fluid present in the lymphatic system is called lymph
III. It contains specialised lymphocytes which are responsible for the immunity of the body
IV. Lymph is an important carrier for nutrients and hormones
V. Fats are absorbed through the lymph in the lacteals present in the intestinal villi
Choose the correct option Show Answer

Q184) Which of the following is a cell fragment? Show Answer

Q185) The thread-like tendons of papillary muscles inserted upon the flaps of tricuspid and bicuspid valves are Show Answer

Q186) Incomplete circulation is found in
I. reptiles II. amphibians
III. birds IV. mammals
The correct option with appropriate choices is Show Answer

Q187) Statement 1: Smaller the organism higher is the rate of metabolism per gram weight
Statement 2: The heart rate of six months old baby is much higher than that of an old person Show Answer

Q188) I. Neutrophils II. Eosinophils
III. Basophils IV. Lymphocytes
V. Monocytes
Identify wheather the given cell types are granulocytes (A) and agranulocytes (B) and choose the correct option accordingly
Show Answer

Q189) Factors for coagulation or clotting of the blood are also present in the …A… in an …B… form. Plasma without the clotting factors is called …C… .
Choose the correct option for the blanks A, B and C
Show Answer

Q190) Normal activities of the heart are regulated Show Answer

Q191) Pulmonary artery differs from pulmonary vein in having Show Answer

Q192) All vertebrates posseses a …
A… . Fishes have a …
B… chambered heart with atrium and ventricles. Amphibians and reptiles have a …
C… chambered heart. Bird and mammals have …
D… chambered of heart
Choose the correct option
Show Answer

Q193) Which of the following statements is true for lymph? Show Answer

Q194) Extrinsic factors (blood clotting) are the factors triggered by release of Show Answer

Q195) The cardiac cycle in normal person is about Show Answer

Q196) ECG is a measure of Show Answer

Q197) The wall of the ventricles are much thicker than that of atrium because Show Answer

Q198) The role of pace maker in heart is to Show Answer

Q199) Coronary heart disease is due to Show Answer

Q200) Open circulatory system is present in
1. Arthropods
2. Annelids
3. Chordates
4. Molluscs.
Show Answer

Q201) During cardiac cycle, about …A…% of ventricular filling occurs, prior to the arterial contraction …B…% ventricular filling occurs due to arterial contraction
Choose the correct option for A and B
Show Answer

Q202) Cardiac cycle is a cyclic event that occur in Show Answer

Q203) Advantage of closed circulatory system is that Show Answer

Q204) When thromboplastin is released in humans? Show Answer

Q205) Select the lymphoid organs from the given choices
I. Lymph node , II. Thymus gland,
III. Red bone marrow , IV. liver,
V. Spleen, VI. Osteocytes,
VII. Peyer’s patches
The correct option with correct choices is
Show Answer

Q206) ‘Bundle of His’ is a part of which one of the following organs in humans? Show Answer

Q207) To obtain a standard ECG, the patient is connected to the machine with three electrical leads. These three electrical lead are connected as one each to the Show Answer

Q208) Maximum surface area of circulating system is seen in Show Answer

Q209) When all the four-chambers of the heart are in relaxed state, it is called Show Answer

Q210) Cardiac output is determined by Show Answer

Q211) To which of the following, bundle of His passes stimulus of contraction? Show Answer

Q212) In which, blood circulation starts and ends in capillaries? Show Answer

Q213) Lymph is an important carrier for the transport of Show Answer

Q214) The difference between systolic and diastolic pressure in human is Show Answer

Q215) The first heart sound is produced when Show Answer

Q216) Double circulation is Show Answer

Q217) Which of the following blood vessels in the circulatory system of frog has more oxygenated blood? Show Answer

Q218) Identify the correct statement
I. The impulse of the heart beat originates from SAN
II. Rate of the heart is determined by SAN
III. Bundle of His/AV bundle is present in the interventricular septum
IV. Atrio Ventricular Node (AVN) is situated in the lower left corner of the right auricle
Choose the correct option
Show Answer

Q219) Chordaetendinae are found in Show Answer

Q220) Which nodal fibres lies along the right and left ventricles (interventricular septum)? Show Answer

Q221) In an ECG, the depolarization of atria is indicated by Show Answer

Q222) In frog’s heart, there are cardiac muscles, which consists of fibres called Show Answer

Q223) Diastolic pressure of a normal human is Show Answer

Q224) Congestion of the lungs is one of the main symptoms in Show Answer

Q225) Platelets are Show Answer

Q226) Which chamber of the human heart has the thickest muscular wall? Show Answer

Q227) In normal humans, time taken for the normal blood clotting is Show Answer

Q228) Fats in the human body are absorbed through Show Answer

Q229) The volume of blood each ventricle pumps out during a cardiac cycle is about Show Answer

Q230) The structure of which of the following consists of a layer of single cell thickness? Show Answer

Q231) Pulmonary aorta carries Show Answer

Q232) What is the correct order or events occurring in blood clotting?
I. Conversion of fibrinogen to fibrin
II. Formation of clot
III. Thromboplastin formation
IV. Conversion of prothrombin to thrombin
Choose the correct option
Show Answer

Q233) ‘Bundle of His’ can be named as a muscular tissue which is found between Show Answer

Q234) Generally, artificial pacemaker consists of one battery made up of Show Answer

Q235) When two atria contract simultaneously and results in the blood pumping into ventricles, this is called Show Answer

Q236) All reptiles have a three-chambered heart except Show Answer

Q237) Which of the statement is correct?
I. The closing and opening of the heart is through the valves during each heart beat
II. The movement of the impulse passes from the SA node to all the regions of the heart wall
III. The number of the times the heart beats in one minute is 60
IV. Change in the blood volume in all the chambers of the heart occurs during the cardiac cycle
The option with correct statements is
Show Answer

Q238) As the blood passes through the capillaries some water along with small water soluble substances move out into the spaces between the cells of the tissues. This fluid released out is called the Show Answer

Q239) Cardiac centre is present in Show Answer

Q240) Which of the following is right about blood coagulation?
I. Vitamin-B is necessary for the formation prothrominase
II. Conversion of fibrin to fibrinogen
III. Conversion of prothrombin to prothrombinase
The option with correct combination is
Show Answer

Q241) Find out the wrong match Show Answer

Q242) Pulmonary circulation is Show Answer

Q243) Systemic heart refers to Show Answer

Q244) Serum is Show Answer

Q245) In higher vertebrates, SA-node helps in Show Answer

Q246) The valves in the heart allows the blood flow in which direction?
I. From atria to ventricles
II. From ventricles to pulmonary artery
III. From pulmonary artery to aorta
Choose the correct option
Show Answer

Q247) Clotting disorders occur mainly due to the reduction in the number of Show Answer