InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which of the following correctly explains a phase/event in cardiac cycle in a standard electrocardiogram ?A. ORS complex indicates atrial contractionB. ORS complex indicates ventricular contractionC. Time between S and T represents atrial systoleD. P-wave indicates beginning og ventricular contraction |
| Answer» Correct Answer - B | |
| 102. |
Which of the following correctly explains a phase`//`event in cardiac cycle in a standard electrocardiogramA. QRS complex indicates atrial contrac- tionB. ORS complex indicates ventricular con- tractionC. Time between S and T represents atri- al systoleD. P-wave indicates beginning of ventricu- lar contraction |
| Answer» Correct Answer - b | |
| 103. |
In the given figure the durations of the events of the cardiac cycle are given. Identify these events and select the correct option. A. `{:(A,B,C),("Auricular systole","Joint diastole","Ventricular systole"):}`B. `{:(A,B,C),("Ventricular systole","Joint diastole","Auricular systole"):}`C. `{:(A,B,C),("Ventricular systole","Auricular systole","Joint diastole"):}`D. `{:(A,B,C),("Joint diastole","Auricular systole","Ventricular systole"):}` |
| Answer» Correct Answer - D | |
| 104. |
Which among the following is correct during each cardiac cycle ?A. The volume of blood pumped out by the Rt and Lt ventricles is same.B. The volume of blood pumped out by the Rt and Lt ventricles is differentC. The volume of blood received by each atrium is differentD. The volume of blood received by the aorta and pulmonary artery is different |
| Answer» Correct Answer - A | |
| 105. |
Cardiac activity could be moderated by the autonomous neutral system. Tick the correct answerA. The parasympathetic system stimulated heart rate and stroke volumeB. The sympathetic system stimulates heart rate and stroke volumeC. The parasympathetic system decreases the heart rate but increase stroke volumeD. The sympathetic system decreases the heart rate but increase stroke volume |
| Answer» Correct Answer - B | |
| 106. |
Mark the pair of substances among the following which is essential for coagulation of blood.A. Heparin and calcuim ionsB. Calcium ions and platle factorsC. oxalates and citratesD. Platelet factors and heparin |
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Answer» Correct Answer - B Certain factors released by the tissues at the site of injury can initiate coagulation Process. Calcium ions and platelet factor act in th e first step of coagulation which is as follows. At the site of an injury . The blood platelets disintegrate and release a phosphoiipid,called platelet factor 3 (platelet thromboplastin) Injured tissues also release a lipoprotein factor called thromboplastin. (c ) These two factor combine with calcium `Ca^(2+)` ions and certain Protiens of the blood plasma to from an enzyme called pro-thrombinase. ( V) Prothrombiminase catalyzes prothrombin into active protein called thrombin. Thrombin further converts inative fibrinogens into fibrin In the blood plasma. Then the long fibres of fibrin form a dense network upon wound and trap blood corpuscles RBCs, WBCs and platelets to form a clot. And the other options are worng |
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| 107. |
Mark the pair of substances among the following which is essential for coagulation of blood.A. Heparin and calcium ionsB. Calcium ions and platelet factorsC. Oxalates and cirtratesD. Platelet factors and heparin |
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Answer» Correct Answer - C Certain factor released by the tissues at the site of injury initiate coagulation. Calcium ions play a very important role in clotting. Blood clotting can also be prevented in a test tube by adding a little oxalate or citrate. Oxalate or citrate reacts with calcium to form an insoluble compound, so free calcium ion necessary for clotting are not mentioned in the option (c) |
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| 108. |
Cardiac activity could be moderated by the autonomous neural system. Tick the correct answerA. The parasympathetic system stimulates heart rate and stroke volumeB. The sympathetic system stimulates heart rate and stroke volumeC. The parasympathetic system decreases the heart rate but increase stroke volumeD. The sympathetic system decreases the heart rate but increase stroke volume |
| Answer» Correct Answer - B | |
| 109. |
Mark the pair of substances among the following which is essential for coagulation of blood.A. Heparin and calcium ionsB. Calcium ions and platelet factorsC. Oxalates and citratesD. Platelet factors and heparin |
| Answer» Correct Answer - B | |
| 110. |
Which one of the following types of cells lack nucleus in humans ?A. RBCB. NeutrophilsC. EosinosphilsD. Monocytes |
| Answer» Correct Answer - A | |
| 111. |
ECG depicts the depolarisation and repolarisation process during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.A. Depolarisation of atriaB. Repolarisation of atriaC. Depolarisation of ventriclesD. Repolarisation of ventricles |
| Answer» Correct Answer - B | |
| 112. |
Albumins help inA. Defence mechanism of the bodyB. Maintaining blood volume and pressureC. Blood clottingD. The formation of serum |
| Answer» Correct Answer - B | |
| 113. |
Refer to the given figure in which A refers to pulmonary artery pressure and B refers to right ventricular pressure. Identify P,Q,R and S in the figure and match with the list (i-iv) given below (i) Isovolumetric ventricular contraction (ii) Ventricular ejection (iii) Isovolumetric ventricular relaxation (iv) Ventricular filling A. P-(iv),Q-(iii),R-(ii),S-(i)B. P-(ii),Q-(iii),R-(i),S-(iv)C. P-(iv),Q-(i),R-(ii),S-(iii)D. P-(i),Q-(ii),R-(iii),S-(iv) |
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Answer» Correct Answer - C The pressure changes in the right ventricle and pulmonary arteries are qualitatively similar to those for the left ventricle and aorta. These are striking quantitative differences, however. Typical pulmonary artery systolic and diastolic pressures are 25 and 10 mm Hg, respectively, compared to systemic arterial pressures of 120 adn 80 mm Hg. Thus the pulmonary circulation is a low-pressure system. Despite the difference in pressure during contraction, however, the stroke volumes of the two ventricles are the same. During isovolumetric contraction and relaxation, the ventricular volume does not change, though the ventricular pressure increases and decreases respectively. |
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| 114. |
Carotid artery suppliesA. deoxygenated blood to kidneysB. deoxygenated blood to liverC. oxygenated blood to limbsD. oxygenated blood to brain |
| Answer» Correct Answer - D | |
| 115. |
Assertion : Fibrins are formed by the conversion of inactive fibrinogens on the plasma by the enzyme thrombin Reason : Plasma without fibrinogen and blood corpuscles is called serum.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - B A clot or coagulum is mainly formed of a network of threads called fibrins in which dead and damaged formed elements of blood are trapped. Fibrins are formed by the conversion of inactive fibrinogens in the plasma by the enzyme thrombin. Thrombins, in turn are formed from another inactive substance present in the plasma called prothromin, An enzyme complex, prothrombinasem is required for the above reaction. The clot seals the wound and stops bleeding. After its formation, clot starts contracting and a pale yellow fluidm the serum, oozes out. This serum is blood plasma minus fibrinogen and blood corpuscles. |
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| 116. |
Carotid artery suppliesA. oxygenated blood to lungsB. oxygenated blood to intestineC. oxygenated blood to brainD. none of these |
| Answer» Correct Answer - C | |
| 117. |
Carotid artery carriesA. Impure blood to brainB. Oxygenated blood to brainC. Impure blood too kidneyD. Oxygenated blood to heaet |
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Answer» Correct Answer - B Carotid artery carries oxygented blod to brain. |
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| 118. |
Carotid artery carriesA. Impure blood from brainB. Oxygenated blood to anterior region of body or to brainC. Impure blood to kidneyD. Oxygenated blood to heart |
| Answer» Correct Answer - B | |
| 119. |
Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard whenA. Ventricular walls vibrate due to gushing in of blood from atriaB. Semilunar valves close down after the blood flows into vessels from ventriclesC. AV node receives signal from SA nodeD. AV valves open up |
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Answer» Correct Answer - B Doctors used stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when semilunar valves close down after the blood flows into vessels from ventricles. |
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| 120. |
Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard whenA. AV valves open upB. Ventricular walls vibrate due to gushing in of blood from atria.C. Semilumar valves close down after the blood flows into vessels from ventriclesD. AV node receives signal from SA node |
| Answer» Correct Answer - C | |
| 121. |
Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard whenA. AV valves open upB. ventricular walls vibrate due to gushing in of blood from atriaC. semilunar valves close down after the blood flows into vessels from ventriclesD. AV node receives signal from SA node |
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Answer» Correct Answer - C (c ) In healthy adults, there are two normal heart sounds often described as lub and dup. These are the first heart sound and second heart sound produced by the closing of the AV valves and semilunar valves respectively. |
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| 122. |
Read the following statements and find out incorrect statements. a. Blood is a loose connective tissue consisting of a fluid matrix, plasma and formed elements. b. Plasma is a straw coloured, viscous fluid constituting nearly 90-92 precent of the blood. c. 55 percent of plaasma is water and proteins contribute 6-8 per cent of it. d. Fibrinogen are needed for clooting or coagulation of blood. (e) Factors for clotting of blood are present in the plasma in an inactive from.A. a,b and cB. b,c and dC. c,d and eD. a,b and e |
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Answer» Correct Answer - A a. Blood is a seecialised connective tissue consisting of a fluid matrix, plasma and formed elements. b. Plasma is a straw coloured, viscous fluid constituting nearly 55 percent of the blood. c. `90-92` percent of plasma is water and proteins contribute `6-8` percent of it. |
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| 123. |
The problem of electrical discontinuity caused in the normal heart by the connective tissue separating the atria from the ventricles is solved byA. coordinating electrical activity in the atria with electrical activity in the ventricles by connecting them via the bundle of HisB. having the A-V node function as a secondary pacemakerC. having an ectopic pacemakerD. coordinating electrical activity in the atria with electrical activity in the venticles by connecting them via the vagus nerve |
| Answer» Correct Answer - A | |
| 124. |
The problem of electrical discontinuity caused in the normal heart by the connective tissue separating the atria from the ventricles is solved byA. Coordinating electrical activity in the atria with electrical activity in the ventricles by connecting them via the bundle of HisB. Having the A-V node function as a secondary pacemakerC. Having an ectopic pacemakerD. Coordinating electrical activity in the atria with electrical activity in the ventricles by connecting then via the vagus nerve |
| Answer» Correct Answer - A | |
| 125. |
The figure represents total period of one cardiac cycle i.e., 0.8 sec and A, B and C represent its stages. Identify A, B, C and select the correct statement regarding them A. During A, tricuspid and bicuspid valves open and blood flows from atria into the ventriclesB. During B, bicuspid and tricuspid valves close producing first heard soundC. During C, the semilunar valves close producing second heard soundD. During B, the atria contract due to a wave of contraction by SA node. |
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Answer» Correct Answer - D In the given figure, A is atrial and ventricular diastole (complete cardiac diastole), B is artrial systole and C is ventricular systole Druing atrial systole, he atria contract due to wave of contraction, stimulated by the SA node. The blood is forced into te ventricles as the bicuspid and tricuspid valves are open. At the beginning of ventricular systole, the ventricles begin t contract due to a wave of contraction, stimulated by the AV node. The bicuspid and tricuspid valves close immediately producing part of the first heart sound. With complete ventricular systole, the ventricles complete their contraction and the blood flows into the pulmonary trunk and aorta as the semilunar valves open. At the beginning of ventricular diastole, the tricuspid and bicuspid valves open as the pressure in the ventricles fall and blood flows from the atria into the ventricles. Contraction of the heart does not cause this blood flow. It is due to the fact that the pressure within the relaxed ventricles is less than that in the atria and veins. |
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| 126. |
Why is blood considered to be connective tissue? |
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Answer» Connective tissues have cells scattered throughout an extra-cellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because of two reasons. `implies` Like the other connective tissues, blood is mesodermal in origin. `implies` It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it. |
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| 127. |
Excessively high hear rate `( gt 180 )` can reduce cardiac output becauseA. blood is moving too fast through the lungs to pick up enough oxygenB. it tires out the heart muscles and so they pump slowerC. it reduces the time for ventricular filling which reduces storke volumeD. the PR-interval increases which leads to longer ventricular diastole and shorter ventricular systole |
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Answer» Correct Answer - C The cardiac output is determined by multiplying the heart rate (HR) - the number of beats per minute, and the stroke volume (SV) - the blood volume ejected by each ventricle during systole. During diastole, normal filling of the ventricles occurs. In the first third period of diastole, there is rapid filling of ventricles. The middle period of diastole accounts only for a small amount of blood that countinues to empty into the atria from the veins and passes through the atria directly into the ventricles. During the last third period of diastole, the atria contract and give an additional thrust to the inflow of blood into the ventricles. The fact that most of ventricular filling is completed during early diastole is of great importance. It ensures that filling is not seriously impaired during period when the heart is beating very rapidly and the duration of diastole and therefore total filling times are reduced. Furthermore, this leads to a decrease in the blood volume ejected at the time of ventricular systole. Hence, the stroke volume reduces. |
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| 128. |
What is the importance of plasma proteins? |
| Answer» Plasma is the colourless fluid of blood which helps in the transport of food, `CO_(2)`, waste products, and salts. It constitutes about 55% of blood. About 6.8% of the plasma is constituted by proteins such as fibrinogens, globulins, and albumins. Fibrinogen is a plasma glycoprotein synthesised by the liver. It plays a role in the clotting of blood. Globulin is a major protein of the plasma. It protects the body against infecting agents. Albumin is a major protein of the plasma. It helps in maintaining the fluid volume within the vascular space. | |
| 129. |
Lungs receive blood from right side of the heart, whereas the branching of systemic arteries result in a parallel pattern. What is the advantage of such of an arrangement ?A. It ensures that each of the peripheral organs and tissues receive only a fraction of blood pumped by the left ventricleB. It allows for independent variation in blood flow through different tissues as their metabolic activities changeC. It ensures that as blood flows through capillariesm some of the oxygen leaves the blood to enter cellsD. Both (a) and (b) |
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Answer» Correct Answer - D The lungs receive all the blood pumped by the right side of the heart, whereas the branching of the systemic arteries results in a parallel pattern so that each of the peripheral organs and tissues receives only a fraction of the blood pumped by the left ventricle. This arrangement guarantees that all systemic tissues receive freshly oxygenated blood and allows for independent variation in blood flow through different tissues as their metabolic activies change. |
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| 130. |
pH of blood in artery and vein isA. SameB. More in artery and less in veinC. More in vein and less in arteryD. Not definite |
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Answer» Correct Answer - B Because in vein presence of `CO_(2)` decreases the pH. |
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| 131. |
pH of bloodA. is greater than 9B. ranges between 7-8C. is less than 7D. none of these |
| Answer» Correct Answer - B | |
| 132. |
Reduction in pH of blood willA. reduce the rate of heart beatB. Reduce the blood supply to the brainC. decrease the affinity of hemoglobin with oxygenD. release bicarbonate ions by the liver |
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Answer» Correct Answer - C Reduction in pH of blood will decrease the affinity of haemoglobin with oxygen. |
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| 133. |
If nerves supplying heart are cut, the heart willA. ShrinkB. Beat arthythmicallyC. Beat ryhthmicallyD. Stop |
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Answer» Correct Answer - B If nerves suplying heart are cut, the heart will beat arhythmically. |
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| 134. |
Rsising of PH of blood shall result inA. Inhibition of carbonic anhydraseB. Production of carbon monoxide and causing carbon monoxide poisoningC. Non-release of carbon dioxide from carbonic acid and carbonatesD. Non-dissociation of oxygen from oxyhaemoglobin |
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Answer» Correct Answer - A Raising of pH pf blood shall result in inhibition of carbonic anhydrase. |
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| 135. |
Which of the following vessel in rabbit starts with capillaries and ends in capillaries Which one of the following vein breaks up into capillariesA. Pelvic veinB. pulmonary veinC. Renal veinD. Hepatic portal vein |
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Answer» Correct Answer - D A vein that breaks up into capillaries is hepatic portal vein. |
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| 136. |
Which of the following vessel in rabbit starts with capillaries and ends in capillaries Which one of the following vein breaks up into capillariesA. Pulmonary arteryB. Renal veinC. Hepatic portal veinD. Renal artery |
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Answer» Correct Answer - C Hepatic portal vein in Rabbit starts with capillaries and ends in capillaries. |
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| 137. |
A bundle of nodal fibres, which continues from the AVN which passed through the atrio-ventricular septa to emege on the top of the inter-ventricular septum is calledA. Right and left bundleB. Atrio-ventricular bundle (AV bundle)C. Purkinje fibresD. Boundle of His |
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Answer» Correct Answer - B A bundle of nodal fibres, which continues from the AVN which passes through the atrio-bentricular septa to emerge on the top of the inter-ventricular sptum is called atrio-ventricular vundle (AV bundle). |
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| 138. |
Serotonin in the bloodA. Relexes blood vesselsB. Prevents clotting of bloodC. Helps in clotting of bloodD. Constricts blood vessels |
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Answer» Correct Answer - D Because serotonin is a vaso-constrictor. |
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| 139. |
Match the types of WBC listed under column `I` with the shape of nucleus given under column `II` and select the correct option from codes given below `{:(,"Column I",,"Column II"),("A.","Neutrophils","(i)","Kidney-shaped"),("B.","Eosinophils","(ii)","S-shaped"),("C.","Basophils","(iii)","3 to 5 lobes"),("D.","Monocyte","(iv)","2 lobes"),(,,"(v)","Disc-shaped"):}`A. A-(ii),B-(v),C-(i),D-(ii)B. A-(v),B-(iii),C-(i),D-(iv)C. A-(ii),B-(i),C-(v),D-(iii)D. A-(iii),B-(iv),C-(ii),D-(i) |
| Answer» Correct Answer - D | |
| 140. |
An artifical pace-maker is implanted subcutaneously and connected to the heart in patientsA. having 90% blockage of the three main coronary arteriesB. having a very high blood pressureC. with irregularity in the heart rhythmD. suffering from arteriosclerosis |
| Answer» Correct Answer - C | |
| 141. |
An artifical pace-maker is implanted subcutaneously and connected to the heart in patientsA. having `90%` blockage of the three main coronary arteriesB. having a very high blood pressureC. with irregularity in the heart rhythmD. suffering from arteriosclerosis |
| Answer» Correct Answer - C | |
| 142. |
Assertion. The S-A node acts as pace maker. Reason. The S-A node is located in the wall of the right atrium near the interatrial septum.A. If both A and R are true and R is the correct explantion of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is falseD. If both A and R are false. |
| Answer» Correct Answer - c | |
| 143. |
A boy has the blood group AB. What is true of the inheritance of this blood group in his case ? (a) His parents should be one with O group and the other with B group. (b) His father should be with A group and mother with B group. (c ) His parents should be one with O group and the other with A group. (d) Both his parents should be with B group. |
| Answer» Both his parents should be with B group. | |
| 144. |
What is total diastolic time of ventricle in caridiac cycleA. 0.30 secondB. 0.40 secondC. 0.50 secondD. 0.10 second |
| Answer» Correct Answer - B | |
| 145. |
A unique vascular connection between the digestive tract and liver is calledA. Hepatic portal systemB. Renal portal systemC. Hapophyseal portal systemD. Coronary system |
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Answer» Correct Answer - A A unique vascular connection between the digestive tract and liver is called pepatic protal system. |
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| 146. |
A unique vascular connection between the digestive tract and liver is called |
| Answer» The unique vascular connection that, exists between the digestive tract and liver is called hepatic portal system. | |
| 147. |
Name the vascular connection that exists between the digestive tract and liver. |
| Answer» Hepatic portal system. | |
| 148. |
Heart beat originates fromA. PacemakerB. Cardiac musclesC. Left atriumD. Right ventricle |
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Answer» Correct Answer - A Cardiac impulse (Heart beat) normally originate from the pace make (S.A. node). |
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| 149. |
Glucose is carried from digesive tract to liver byA. Hepatic arteryB. Hepatic portal veinC. Pulmonary veinD. None of the above |
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Answer» Correct Answer - B Glucose is carried from digestive tract to liver by hepatic porta vein. |
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| 150. |
In which of the following, heart pump mixed bloodA. Single circulationB. Incomplete double circulationC. Double circulationD. both A and B |
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Answer» Correct Answer - B In incomplete double circulation, heart pump mixed blood. |
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