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Q. No.Consider the given two statements:
Assertion (A):
Human heart is myogenic.
Reason (R):
Human heart is made of cardiac muscle.
1.
Both (A) and (R) are True and (R) correctly explains (A)
2.
Both (A) and (R) are True but (R) does not correctly explain (A)
3.
(A) is True but (R) is False
4.
(A) is False but (R) is True
Subtopic: Human Heart: Gross Anatomy | Regulation of Cardiac Activity |
64%
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Which WBC has a large kidney-shaped nucleus, does not have granules in the cytoplasm, and after differentiation performs phagocytosis?
1. Neutrophil
2. Basophil
3. Lymphocyte
4. Monocyte
Subtopic: Blood: White Blood Cells |
78%
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Which of the following best describes the correlation between heart sounds and events of the cardiac cycle?
| 1. | The first heart sound (S1), also known as "lub," is produced by the closing of the semilunar valves at the beginning of systole. |
| 2. | The second heart sound (S2), also known as "dub," is produced by the closing of the atrioventricular valves at the end of systole. |
| 3. | The first heart sound (S1), also known as "lub," is produced by the closing of the atrioventricular valves at the beginning of systole. |
| 4. | The second heart sound (S2), also known as "dub," is produced by the reopening of the atrioventricular valves at the beginning of diastole. |
Subtopic: Human Heart: Cardiac Cycle |
84%
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Which of the following statement(s) about pulmonary and systemic circulation is/are correct?
1. Only A
2. Only B
3. Both A and B
4. Neither A nor B
| A: | Pulmonary circulation transports oxygen-rich blood from the heart to the rest of the body, while systemic circulation brings oxygen-poor blood back to the heart. |
| B: | Pulmonary circulation carries oxygen-poor blood from the heart to the lungs and returns oxygen-rich blood back to the heart, while systemic circulation moves oxygen-rich blood from the heart to the body and returns oxygen-poor blood to the heart. |
2. Only B
3. Both A and B
4. Neither A nor B
Subtopic: Human Heart: Double Circulation |
80%
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Consider the given two statements:
| Assertion (A): | Erythroblastosis fetalis occurs when an Rh-negative mother carries an Rh-positive fetus. |
| Reason (R): | The mother's immune system may produce antibodies against the Rh factor, which can cross the placenta and attack the fetal red blood cells. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Blood: Blood Group |
87%
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Which statement is true about double circulation in mammals?
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The pulmonary circuit sends de-oxygenated blood to the lungs, while the systemic circuit circulates oxygenated blood to the rest of the body. |
| II: | Double circulation includes two separate circuits for oxygenated and deoxygenated blood, which never mix. |
| III: | In double circulation, blood passes twice through the heart in one complete cycle of the body. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Human Heart: Double Circulation |
77%
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How many of the given statements are correct?
1. 1
2. 2
3. 3
4. 5
| A: | Left atrium has the thickest musculature in the human heart. |
| B: | SA node is located in the wall of the right atrium. |
| C: | Right ventricle pumps oxygenated blood into aorta. |
| D: | Heart is covered by a double-layered pericardium. |
| E: | Left atrium receives deoxygenated blood through pulmonary veins. |
2. 2
3. 3
4. 5
Subtopic: Human Heart: Gross Anatomy |
57%
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A medical term used to describe chest pain or discomfort that occurs when an area of the heart muscle doesn't get enough oxygen-rich blood is known as:
1. Heart Block
2. Myocardial Infarction
3. Angina pectoris
4. Tachycardia
1. Heart Block
2. Myocardial Infarction
3. Angina pectoris
4. Tachycardia
Subtopic: DISORDERS OF CIRCULATORY SYSTEM |
86%
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Consider the given two statements:
| Assertion (A): | Double circulation includes the passage of blood through the heart twice during one complete cycle |
| Reason (R): | Double circulation is seen in birds and mammals. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Circulatory Pathways |
81%
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What percentage of the ventricular filling is passive, which means it is due to simply the opening of atrioventricular valves?
1. 30%
2. 50%
3. 70%
4. 90%
1. 30%
2. 50%
3. 70%
4. 90%
Subtopic: Human Heart: Cardiac Cycle |
63%
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