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.
| 451. |
Blood of periplaneta does not carry oxygen becauseA. `O_(2)` is transported by repiratory tubulesB. Its respiration is anaerobicC. There is no cells in its bloodD. Periplaneta does not has any blood vessel |
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Answer» Correct Answer - A Blood of cockroach lacks respiratory pigment. Hence, `O_(2)` is carried by the respiratory tubules. |
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| 452. |
In which one of the following pairs, two terms represent the same thing ?A. `"Lymphocyte - erythrocyte"`B. `"Plasma - serum"`C. `"Mitral valve - bicuspid valve"`D. `"Atrioventricular node - pacemaker"` |
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Answer» Correct Answer - C The opening between the left atrium and left ventricle is guarded by a bisuspid valve, also known as mitral valve. |
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| 453. |
In which of the following pairs the two items mean one and the same thing?A. Haemophilia-Blood cancerB. SA-node-PacemakerC. Malleus-AnuilD. Leucocytes-Lymphocytes |
| Answer» Correct Answer - B | |
| 454. |
In which one of the following pairs, two terms represent the same thing ?A. Plasma-SerumB. Atrioventricular node-PacemakerC. Leucocytes -LymphocytesD. Mitral valve-bicuspid valve |
| Answer» Correct Answer - D | |
| 455. |
Tricuspid valve is found in betweenA. two atriaB. two ventriclesC. left atrium and ventricleD. right atrium and ventricle |
| Answer» Correct Answer - D | |
| 456. |
A person with blood group A possessesA. Antigen A and antibidies bB. Antigen A and antibodies aC. No antigen but antibodies a and bD. Antigen A and B but no antibodies |
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Answer» Correct Answer - A Person with blood group A possess antigen A and antibodies b/anti-B. |
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| 457. |
a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled membranous bag called____ c. The opening between right Atrium and Right ventricle is guarded by a valve formed of ___muscular flaps, the ___valve. d. The wall of ventricle is ____than atria. e. SAN can generate the maximum number of action potential i.e., ____ `mi n^(-1)`. therefore it is called_____ f Atrial systole increases the flow of lood into the ventricles by about ____percent. g. In____ all the four chambers of the heart are in a relax state. h. the ____wave represents the depolarisation of the atria. i. A system of blood vessels is present in our body exlusively for the circulation of blood to and from the cardiac musculature called_____ j. PNA____ the rate of heart beat and______ |
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Answer» Correct Answer - a. 2,1 b. Mesodermal,Pericardium c. 3,Tricuspid d. Thicker. e. 72, Pacemaker f. 30% g. Joint diastole h. P i. Coronary j. Decrease, Cardiac output |
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| 458. |
a. In the above given flowchart blood filled in the heart is:- b. This type of blood circulation can be observed in:- |
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Answer» Correct Answer - a. Deoxygenated b. Fishes |
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| 459. |
What are great blood vessels ? |
| Answer» Those that enter or leave heart. | |
| 460. |
Assertion : Sino-atrial node (SAN) is called the pacemaker Reason : SAN generates the maximum number of action potentials and is responsible for intiating and maintaining the rhythmic contractions of the heart.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 - A In the myogenic heart, contraction is initiated by specilised muscle. The SAN can generated the maximum number of action potentials, i.e., `70-75 min^(-1)` and is responsible for intiating and maintaining the rhythmic contractile activity of the heart. Therefore, it is called the pacemaker. The SAN controls the beat of the heart because its rate of rhythmical discharge is faster than that of any other part of the heart. Therefore, the SAN is virtually always the pacemaker of the normal heart. |
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| 461. |
Assertion : Sino-atrial node (SAN) is called the pacemaker Reason : SAN generates the maximum number of action potentials and is responsible for intiating and maintaining the rhythmic contractions of the heart.A. Right upper corner of tight atriumB. Left upper corner of right atriumC. Right lower corner of left atriumD. Left lower corner of left atrium |
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Answer» Correct Answer - A Sino-atrial node (SAN) ia a patch of nodal tissue is present in right upper corner of right atrium. |
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| 462. |
a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle. c. The cardiac output of a normal man will be much lesser than an athlete. d. The wall of right ventricle is much thicker than the left ventricle e. In pisces the two separate circulatory pathways are present, hence they have double circulation. f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern. g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi. h. The SAN can generate the maximum number of action potential i.e. 140-150 `mi n^(-1)` in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart. i. Angina can occur in any age but more common among the neonates and infants. j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease. |
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Answer» Correct Answer - a. T b. F c. T d. F e. F f. T g. F h. T i. F j. F |
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| 463. |
A reduction in the number of platelets can lead toA. Blood coagulation inside vesselsB. Clotting disordersC. Excessive loss of blood from the bodyD. Both B and C |
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Answer» Correct Answer - D Platelets can release a variety of substance (like thromboplastin) most of ehich are involved in the coagulation or clotting of blood. A reduction in their humber can lead to clooting disorders which will lead to excessive loss of blood from the body. |
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| 464. |
Most common blood group in India and World isA. ABB. AC. BD. O |
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Answer» Correct Answer - D Most common blod group is O |
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| 465. |
What is true about vein?A. All veins carry deoxygenated bloodB. All veins carry oxygented bloodC. They carry blood from organs towards heartD. They carry blood from heart towards the organs |
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Answer» Correct Answer - C |
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| 466. |
Which is correct about leucocytes?A. They are red colouredB. They can cross capillariesC. They are enucleateD. Decrease in their number causes leukemia |
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Answer» Correct Answer - B Leucoytes can cross capillaries. |
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| 467. |
Blood grouping which is/are widely used all over the world areA. ABO groupingB. Rh groupingC. Both A and BD. None of the above |
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Answer» Correct Answer - C Blood grouping which are widely used all over the world are ABO grouping an Rh grouping. |
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| 468. |
In circulatory system, valves occur inA. Heart and blood vessels of both vertebrates and invertabrates as well as vertebrate lymphaticsB. Both vertabrate and invertebrate heartsC. Vertebrate heart onlyD. Both vertabrate and invertebrate hearts and their blood vessels |
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Answer» Correct Answer - A In circulatory system, valves occur in heart and blood vessels of both vertebrates and invertebrates as well as vertebrate lymphatics. |
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| 469. |
Which of the following is not a constituent of formed elements?A. ErythrocytesB. LeucocytesC. PlateletsD. Plasma |
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Answer» Correct Answer - D Erythrocytes, leucocytes and platelets are constituent of formed elements. |
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| 470. |
In leucopeniaA. Leucocytes increase above 6000B. Leucocytes decrease below 5000C. Bone morrow is destroyedD. Total number of lymphocytes decrease from `2%` to `0.5%` |
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Answer» Correct Answer - B In leucopenia lecocytes decrease below 5000. |
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| 471. |
Most probable cause of heart attack isA. Cardiac arrestB. ArteriosclerosisC. AtherosclerosisD. High level of HDL |
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Answer» Correct Answer - C Most probable cause of heart attack is arteriosclerosis. |
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| 472. |
Human heart is enclosed in a double walled sac calledA. PeritomeB. PericardiumC. Pericardial sinusD. Perineural sinus |
| Answer» Correct Answer - B | |
| 473. |
Give the locations of S-A node and A-V node. |
| Answer» Both nodes lie in the wall of the right auricle, S-A node near the opening of superior vena cava and A-V node near the lower end of atrioventricular septum. | |
| 474. |
Heart of Heart is Pace maker of the heart isA. SA nodeB. AV nodeC. Bundle of HisD. Purkinje fibres |
| Answer» Correct Answer - A | |
| 475. |
Name the various types of formed elements present in the blood. |
| Answer» Erythrocytes, lymphocytes, monocytes, neutrophils, eosinophils, basophils, and platelets. | |
| 476. |
The other term for heart attack isA. Coronary thrombosisB. Myocardial infarctionC. Cardiac arrestD. Ischaemia |
| Answer» Correct Answer - B | |
| 477. |
What is stroke volume ? |
| Answer» During lone cardian cycle, each ventricle pumps out approximately 70 ml. of blood. This is called the stroke volume. | |
| 478. |
Iron containing haem is attached with lobin of hemoglobin asA. CoenzymeB. ApoenzymeC. Prosthetic groupD. Inorganic group |
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Answer» Correct Answer - C Iron containing haeme is attached with globin of haemoglobin as prostetic group. |
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| 479. |
name the primary embryonic cell layer from which heart is derived. |
| Answer» Correct Answer - Mesoderm. | |
| 480. |
When the heart beat increases the condition is calledA. BradycardiaB. TachycardiaC. LeucopeniaD. Cardinac arrest |
| Answer» Correct Answer - B | |
| 481. |
What is heart murmur ? Name atleast two diseases which may result in heart murmur. |
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Answer» Defective or damaged heart valves produce, during their closure, an abnormal but detectable sound called as murmur. Spphilis and rheumatic fever may damage heart valves. |
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| 482. |
A heart " murmur" disorder indicates a defect of `:-`A. heart valveB. bundle of HisC. sinoatrial nodeD. Atrioventricular node |
| Answer» Correct Answer - B | |
| 483. |
Murmur occurs due to defect inA. AV nodeB. SA nodeC. Purkinje fibresD. Heart valves |
| Answer» Correct Answer - D | |
| 484. |
What is heart rate ? |
| Answer» Our heart normally beats 70 - 75 times in a minute. This is called heart rate. | |
| 485. |
Granuales of netrophils are derived fromA. PhagosomesB. MitochondriaC. Golgi bodiesD. E.R. |
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Answer» Correct Answer - C Granules of neutrophils are derived from golgi bodies. |
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| 486. |
Systole causesA. Entry of blood into lungsB. Entry of blood into heartC. Exit of blood from brainD. Exit of blood from ventricle |
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Answer» Correct Answer - D Systole caused exit of blood from ventricle. |
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| 487. |
Why the exchange of materials between the blood and tissues occurs through capillaries ? |
| Answer» Because capillaries are composed of just one cell layer which permits a more rapid exchange of materials between the blood and the tissue. | |
| 488. |
Blood capillaries are made ofA. Endothelium, connective tissue and muscle fibresB. Endothelium and muscle fibersC. Endothelium and connective tissueD. Endothelium only |
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Answer» Correct Answer - D Blood capillaries are mde of endothelium. |
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| 489. |
Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead toA. Vitamin A toxicityB. Kidney stonesC. HyperchloesterolemiaD. Urine laden with keton bodies |
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Answer» Correct Answer - C Continued consumption of diet rich in butter, red meat and eggs over long period may lead to hyperchlesterolemia. |
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| 490. |
Assertion. Biconcave form of human RBCs is advantageous in gas exchange. Reason. A biconcave disc has 20-30% more surface area than a sphere.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 - a | |
| 491. |
When the right ventricle contracts the blood goes intoA. AortaB. BrainC. Pulmonary arteryD. None |
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Answer» Correct Answer - C During ventricular systole. The pressure increases in the ventricles, thus forcing the oxygenated blood from left ventricle into systemic aorta and deoxygenated blood from right ventricle into pulmonary aorta. |
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| 492. |
Fill in the blanks: a. Simple organisms like sponges and coelenterates circulate …1… from their surroundings through their body cavities of facilitate the cells to exchange of `O_(2),CO_(2),` nutrients and waste products. b. More complex organisms used special fluids within their bodies to transport such materials. The ...2... is most commonly used body fluid by most of the higher organisms including humans for this purpose. c. Another body fluid ...3... also helps in the transport of certain substances.A. 1-lymph, 2-water, 3-bloodB. 3-lymph, 1-water, 2-bloodC. 2-lymph, 3-water, 1-bloodD. 2-lymph, 1-water, 3-blood |
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Answer» Correct Answer - B a. Simple organisms like sponges and colenterates circular water from their surroungings through their body acvities to facilitate the cells to exchange of `O_(2), CO_(2),` nutrients and waste products. b. More complex organisms use special fluids within their bodies to transport such materials. The blood is most commonly used body fluid by most of the higher orgnisms including humans for this purpose. c. Another body fluid, lymph also helps in the transport of centain substances. |
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| 493. |
Hepatic protal system extends fromA. Digestive system to liverB. Kidney to liverC. Liver to heartD. Liver to kidney |
| Answer» Correct Answer - A | |
| 494. |
Stimulation of the vagus nerve will make the heart beatA. FasterB. 70 times`//`minuteC. SlowerD. Normal |
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Answer» Correct Answer - C Stimulation of vagus nerve decreases the heart rate but its continuous stimulation shows no further decrease. |
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| 495. |
The secretion of vagus nerve , which reduces the heart rate, isA. dopamineB. adrenalineC. epinephrineD. acetylcholine |
| Answer» Correct Answer - D | |
| 496. |
The gene of sickle cell anaemia is inherited byA. blood cellsB. bone cellsC. sex chromosomesD. autosomes |
| Answer» Correct Answer - D | |
| 497. |
Figure shoes schematic plan of blood circulation in humans with labels A to D, Identify the label and give its function`//` s. A. B - Pulmonary artery-takes blood from heart to lungs, `PO_(2) = 90 mm` HgB. C - Vena Cava-takes blood from body parts to right auricle, `PCO_(2) = 45 mm` HgC. D - Dorsal aorta-takes blood from heart to body parts, `PO_(2) = 60 mm` HgD. A - Pulmonary vein-takes impure blood from body parts, `PO_(2) = 60 mm` Hg |
| Answer» Correct Answer - B | |
| 498. |
A patient brought to a hospital with myocardial infraction is normally immediately givenA. Cyclosporin - AB. StatinsC. PenicillinD. Streptokinase |
| Answer» Correct Answer - D | |
| 499. |
Which of the following hormones has no effect on heart beastA. OxytocinB. ThyroxineC. AdrenalineD. Noradrenaline |
| Answer» Correct Answer - A | |
| 500. |
Deficiency of which of the following causes obesity low plasma `Na^(+)`high `K^(+)` and increased blood pressureA. Growth hormoneB. AdrenalineC. CortisolD. Thyroxine |
| Answer» Correct Answer - C | |