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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.
551. |
Oxygenated blood is carried byA. Pulmonary veinB. Pulmonary arteryC. Vena cavaD. Both (1) & (3) |
Answer» Correct Answer - A | |
552. |
In humans, the cardiac output is aboutA. 6040 mLB. 5040 mLC. 2080 mLD. 3080 mL |
Answer» Correct Answer - B | |
553. |
The opening between the right atrium and the right ventricle is guarded by which valve ?A. Bicuspid valveB. Mitral valveC. Tricuspid valveD. Both (2) & (3) |
Answer» Correct Answer - C | |
554. |
The opening between the right atrium and the right ventricle is guarded by which valve ?A. Tricuspid valveB. Bicuspid valveC. Mitral valveD. Semilunar valve |
Answer» Correct Answer - A | |
555. |
The opening between the right atrium and the right ventricle is guarded by which valve ?A. Monocuspid valveB. bicuspid valveC. Tricuspid valveD. Tetracuspid valve |
Answer» Correct Answer - C | |
556. |
Choose the correct option. (i) Human heart is ectodermal in origin. (ii) Mitral valve guards the opening between right atrium and left ventricle. (iii) SAN is located on the left upper corner of right atrium (iv) Stroke volume `xx` heart rate = Cardiac outputA. (i) alone is correctB. (i) and (ii) alone is correctC. (ii) and (iii) alone are correctD. (iv) alone is correct |
Answer» Correct Answer - D Human heart is mesodermal in origin. Mitral valve guards the opening between left atrium and left ventricle. SAN is located on the right upper corner of right atrium. Stoke volume `xx` heart rate = Cardiac output |
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557. |
An `Rh^-` individual receives `Rh^+` blood.The recipient becomes :A. SterileB. DeadC. No reactionD. iso-immunised |
Answer» Correct Answer - D An `Rh^(-)` individual receives `Rh+blood. The recipient becomes iso-immunised. |
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558. |
Assertion: Closed circulatory system is considered to be more advantageous as compared to open circulatory system. Reason: In closed circulatory system, the flow of fluid can be more precisely regulated.A. If both asseration and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true reason is false.D. If both assertion and reason are false. |
Answer» Correct Answer - A Clossed circulatory system is considered to be more advantageus as compared to poen circulatory system, the flow of fluid can be more precisely regulated. |
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559. |
Erythroblastosis foetalis can occur ifA. Mother is Rh -ve and foetus is Rh +veB. Both mother and foetus are Rh -veC. Mother is Rh +ve and foetus is Rh -veD. Both mother and foetus are Rh +ve |
Answer» Correct Answer - A | |
560. |
Erythroblastosis foetalis can be avoided by administering …a… to the …b… immediately after the delivery of the …c… child.A. a-Rh antibodies, b-child, c-firstB. a-Rh antibodies, b-mother, c-secondC. a-anti-Rh antibodies, b-mother, c-secondD. a-anti-Rh antibodies, b-mother, c-first |
Answer» Correct Answer - D Erythorblastosis foetalis can be avoided by administering anti-Rh antibodies to the mother immediately after the delivery of the first child. |
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561. |
Rh-ve person donated blood to Rh+ve person for the second time. ThenA. Rh (-ve) blood starts reacting to Rh (-ve) bloodB. Rh (+ve) person will dieC. Rh (-ve) person will dieD. Nothing happens to Rh (+ve) person |
Answer» Correct Answer - D Rh-ve person donated blod to `Rh+ve person for second time. Then nothing happens to Rh+ve person as Rh-ve person do not have antigens. |
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562. |
Assertion: Each cardiac cycle consists of systole and diastole of both the atria and ventricles. Reason: The cardiac output of an ordinary man will be much higher than that of an athlete.A. If both asseration and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true reason is false.D. If both assertion and reason are false. |
Answer» Correct Answer - C Each cardiac cycle consists of systole and diastole of both the atria and ventricles. The cirdiac output of an athlete will be much higher than that of an ordinary man. |
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563. |
We feel sleepy just after taking meals becauseA. Blood pressure increasesB. Blood pressure decreasesC. Body weight increasesD. We feel lethargic |
Answer» Correct Answer - A blood is diverted towards alimentary canal. Therfore the pressure of blood falls in brain. |
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564. |
During diastoleA. Blood enters lungsB. Blood leaves the ventricleC. Blood leaves the heartD. Blood enters the heart |
Answer» Correct Answer - D | |
565. |
A portal system is a system in whichA. A vein starts from an organ and ends up in heartB. An artery breaks up in an organ and restarts by the union of its capillariesC. the blood from the gut is brought into the kidney before it is poured into posterior vena cavaD. A vein breaks up in an organ into capillaries and restarts by their union as a new vein in the same organ |
Answer» Correct Answer - D | |
566. |
Immunoglobulins are produced byA. LymphocytesB. SpleenC. LeucocytesD. Monocytes |
Answer» Correct Answer - A | |
567. |
Which one of the following blood vessels in mammals would normally carry the largest amount of ureaA. Dorsal AortaB. Hepatic VeinC. Hepatic Poral VeinD. Renal Vein |
Answer» Correct Answer - B (b) Urea is synthesised in liver. So, maximum amount of urea is present in hepatic vein and minimum in renal vein. |
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568. |
name the blood cells, when reduction in number can cause clotting disorder, leading to excessive loss of blood from the dodyA. NeutrophilsB. ThrombocytesC. ErythrocytesD. Leucocytes |
Answer» Correct Answer - B | |
569. |
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.A. ErythrocytesB. LeucocytesC. NeutrophilsD. Thrombocytes |
Answer» Correct Answer - D | |
570. |
Adult human RBCs are enucleate. Which of the following statements (s) is/are most appropriate explanation for this feature ? 1.They do not need to reproduce 2. They are somatic cells 3. They do not metabolise 4. All their internal space is available for oxygen transportA. Only (d)B. Only (a)C. (a), (c) & (d)D. (b) & (c) |
Answer» Correct Answer - A | |
571. |
Adult human RBCs are enucleate. Which of the following statement (s) is/are most appropriate explanation for this feature ? (1) They do not need to reproduce (2) They are somatic cells (3) They do not metabolise (4) All their internal space is available for oxygen transport.A. Only (IV)B. Only (I)C. (I),(III) and (IV)D. (II) and (III) |
Answer» Correct Answer - A (a) The absence of nucleus in RBC is an adaptation that allows it to contain more haemoglobin and carry more oxygen by providing empty space. This adaptation also aids in effective diffusion of oxygen. Concept Enhancer RBCs are initially produced in bone marrow with a nucleus. They, then undergo enucleation at maturity , in which their nucleus is removed. |
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572. |
A special system of blood vessel is present in our body exclusively for the circulation of blood to and from the cardiac musculature is calledA. Nodal systemB. Portal systemC. Coronary systemD. Bypass system |
Answer» Correct Answer - C A special system of blood vessel is present in our body exclusively for the circulation of blood to and from the cardiac musculature is called coronary system. |
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573. |
____ play an important role in blood clottingA. ErythrocytesB. LeucocytesC. ThrombocytesD. All of these |
Answer» Correct Answer - C | |
574. |
During ventricular systoleA. oxygenated blood is pumped into the pulmonary artery and deoxygenated blood is pumped into the arteryB. oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary veinC. oxygenerated blood is pumped into the pulmonary vein and deoxygenated blood is pumped into the pulmonary arteryD. oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into pulmonary artery. |
Answer» Correct Answer - D Due to contraction of the ventricles (ventricular systole), the pressure inside the ventricles rises, that force open the semilunar valvesof aorta and pulmonary artery so that the blood enters into these vessels. Oxygenated blood is pumped into the aorta from the left ventricle while deoxygenated blood is pumped into the pulmonary artery from the right ventricle. |
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575. |
Chordae tendineae are found inA. ventricles of brainB. joints of legsC. ventricles of heartD. atria of heart |
Answer» Correct Answer - C Chordae tendineae are the special fibrous cords attached to the flaps of tricuspid valve on one end and on the other end with the special muscles of the ventricular wall, the papillary muscles. |
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576. |
Which is not true about chordae tendineae?A. They are stripes of muscles fibresB. They are attached to valvesC. They are attached to papillary musclesD. They prevent collapsing of valves into atria |
Answer» Correct Answer - A | |
577. |
Which of the following substances, if introdced into the blood system, would cause coagulation of blood at the site of its introductionA. ThromboplastinB. FibrinogenC. HeparinD. prothrombin |
Answer» Correct Answer - A | |
578. |
Semilunar valves close whenA. Ventricular pressure risesB. Atrial pressure risesC. Ventricular pressure fallsD. Atrial pressure falls |
Answer» Correct Answer - C | |
579. |
____supply/supplies oxygenated blood to heart musculature.A. Coronary arteriesB. Carotid arteryC. Hepatic arteryD. Coronary sinus |
Answer» Correct Answer - A | |
580. |
If due to some injury the chordae tendineae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect ?A. The flow of blood into the pulmonary artery will be reduced.B. The flow of blood into the aorta will be slowed down.C. The pace maker will stop functioningD. The blood will tend to flow back into the left-artrium |
Answer» Correct Answer - A | |
581. |
A dark reddish brown scam formed athteh site of cut or an injury over a period of time which is calledA. ClotB. ScarC. CoagulumD. Both A and C |
Answer» Correct Answer - D A dark reddish brown scum formed at the site of cut or an injury over a period of time which is called clot and coagulum. |
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582. |
Clotting of blood involvesA. Hemolysis of RBCsB. Denaturation of albumins by thrombinC. Inactivation of plasma clotting factorsD. Change of fibrinogen to fibrin by thrombin |
Answer» Correct Answer - D | |
583. |
Collecting of WBCs at the site of injury occurs due toA. PhagocytosisB. HemolysisC. DiapedesisD. All of the above |
Answer» Correct Answer - C Collecting of WBCs at the site of injury occurs due to diapedesis. |
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584. |
Identify the components labelled (A-D) in the given flow chart of the blood clotting process. A. `{:(A,B,C,D),(underset("plastin")("Thrombo-"),underset("binase")("Prothrom-"),"Thrombin","Fibrinogen"):}`B. `{:(A,B,C,D),("Fibrinogen","Thrombin","Prothrombinase",underset("plastin")("Thrombo-")):}`C. `{:(A,B,C,D),(underset("binase")("Prothrom-"),"Fibrinogen",underset("plastin")("Thrombo-"),"Thrombin"):}`D. `{:(A,B,C,D),("Thromin",underset("plastin")("Thrombo-"),"Fibrinogen",underset("binase")("Prothrom-")):}` |
Answer» Correct Answer - A | |
585. |
Mineral involved in formation of bone and teeth and clotting of blood isA. PotassiumB. SulphurC. CalciumD. Iodine |
Answer» Correct Answer - C Mineral involved in formation of bone and teeth and clotting of blood is calcium. |
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586. |
Find out the wrong statement .A. SA node is called the pacemaker of the heartB. Tricuspid valve is located between right atrium and right ventricleC. By counting the number fo QRS complexes that occur in a given time period, one can determine the heart beat rate of an individualD. The P-wave represents the depolarization of the atria while QRS complex represents the repolarisation of the ventricles |
Answer» Correct Answer - D QRS complex represents the depolarization of the ventricles. |
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587. |
Read the following statements and select the correct option Statement 1 : The 4-chambered heart of birds is superior to the 4-chambered heart of crocodiles Statement 2 : Crocodilian heart retainsboth systemic arches that join, causing mixing of blood in the dorsal aorta while avian heart has lost left systemic arch.A. Both statements 1 and 2 are correctB. Statement 1 is correct but statement 2 is incorrectC. Statement 1 is incorrect but statement 2 is correctD. Both statements 1 and 2 are incorrect |
Answer» Correct Answer - A | |
588. |
A four chambered heart is not found inA. MammalsB. BirdsC. SnakeD. Crocodile |
Answer» Correct Answer - C Four chambered heart is found only in mammals and bird except some reptiles such as crocodiles, gavialis and alligators. |
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589. |
Find out the wrong statement :A. SA node is called the pacemaker of the heartB. Tricuspid valve is located between right atrium and right ventricleC. By counting the number fo QRS complexes that occur in a given time period, one can determine the heart beat rate of an individualD. The P-wave represents the depolarization of the atria while QRS complex represents the repolarisation of the ventricles |
Answer» Correct Answer - D QRS complex represents the depolarization of the ventricles |
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590. |
Which of the following is false about ECGA. P.wave `to` Atrial depolarizationB. T-wave `to` Ventricular depolarizationC. T-wave `to` Ventricular repolarizationD. ST depression indicates infraction |
Answer» Correct Answer - D ST depression indicates ischaemia |
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591. |
Two chambered heart is a feature ofA. amphibiansB. fishesC. reptilesD. birds |
Answer» Correct Answer - B | |
592. |
Which of the following statements is falseA. Blood from the right side of the heart is carried to the lungs by the pulmonary arteryB. The term pleura refers the double layered covering of the kidneyC. Pancreas is both an exocrine and endocrine glandD. Scurvy is caused by the deficiency of vitamin C |
Answer» Correct Answer - B Pleura is a membrane in which the lungs of a vertebrate are suspended from the wall of the throax i.e. , it is the covering of the lungs. |
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593. |
The deposition of lipids on the wall lining the lumen of large and medium sized arteries is referred to asA. Deep vein thrombosisB. Stokes-Adams SyndromeC. OsteoporosisD. Atherosclerosis |
Answer» Correct Answer - D | |
594. |
Which one of the following has elastic wall ?A. PrecavalB. PostcavalC. Dorsal aortaD. Pulmonary vein |
Answer» Correct Answer - C | |
595. |
Which of the statements is false ?A. Tunica media is thin in veinsB. Capillaries have a greater total surface area than any other type of vesselC. Exchange between blood and tissue fluid occur across the walls of venulesD. Small arteries and arterioles present great resistance to blood flow |
Answer» Correct Answer - C | |
596. |
Antibodies in our body are complexA. glycoproteinsB. lipoproteinsC. steroidsD. prostaglandins |
Answer» Correct Answer - A | |
597. |
Most active phagocytic white blood cells areA. Neutrophils and monocytesB. Nuetrophils and eosinophilsC. Lymphocytes and macrophagesD. Eosinophils and lymphocytes |
Answer» Correct Answer - A | |
598. |
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidenceA. HaemocytesB. Serum albuminsC. Serum globulinsD. Fibrinogen in the plasma |
Answer» Correct Answer - C | |
599. |
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidenceA. serum globulinsB. fibrinogen in the plasmaC. haemocytesD. serum albumins |
Answer» Correct Answer - A | |
600. |
Lymph nodesA. Filter the lymphB. Contain phagocytic cellsC. Responsible for lymphocyte activationD. All of these |
Answer» Correct Answer - D | |