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Q. No.Subtopic: Blood: General Description & RBC |
82%
From NCERT
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Comprising about 2-3% of the total white blood cells, which of the following resist infections and are also associated with allergic reactions?
| 1. | Eosinophils | 2. | Basophils |
| 3. | Monocytes | 4. | Lymphocytes |
Subtopic: Blood: White Blood Cells |
80%
From NCERT
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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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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%
From NCERT
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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 |
63%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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 |
86%
From NCERT
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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%
From NCERT
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