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Q. No.Which chamber of the human heart receives the oxygenated blood first?
1.
Left ventricle
2.
Left atrium
3.
Right atrium
4.
Right ventricle
Subtopic: Human Heart: Double Circulation |
86%
From NCERT
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How many of the given statements are true?
| I: | All vertebrates possess a muscular chambered heart. |
| II: | Fishes have a 2-chambered heart with an atrium and a ventricle. |
| III: | All amphibians and all reptiles have a 3-chambered heart. |
| 1. | 0 | 2. | 1 |
| 3. | 2 | 4. | 3 |
Subtopic: Circulatory Pathways |
81%
From NCERT
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What event occurs during the joint diastole in the human heart?
1. Opening of AV valves
2. Closure of AV valves
3. Opening of semilunar valves
4. Closure of semilunar valves
1. Opening of AV valves
2. Closure of AV valves
3. Opening of semilunar valves
4. Closure of semilunar valves
Subtopic: Human Heart: Cardiac Cycle |
55%
From NCERT
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Interstitial fluid:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | has the same mineral distribution as that in plasma. |
| II: | has more protein than that in plasma. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Lymph |
76%
From NCERT
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When the heart muscle is suddenly damaged by an inadequate blood supply, the condition is called as
| 1. | Heart Attack | 2. | Heart Failure |
| 3. | Cardiac Arrest | 4. | Angina pectoris |
Subtopic: ECG & Coronary Artery Disease |
80%
From NCERT
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What is the difference between a heart attack and heart failure?
| 1. | A heart attack is a chronic condition where the heart is unable to pump sufficiently; heart failure is an acute event caused by blockage. |
| 2. | A heart attack results from the blockage of coronary arteries; heart failure is a condition where the heart can't pump blood effectively. |
| 3. | Heart failure is always caused by a heart attack. |
| 4. | Heart attacks and heart failures are different terms for the same condition. |
Subtopic: ECG & Coronary Artery Disease |
86%
From NCERT
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If you examine the blood film of a normal person, which of the following WBCs is least likely to be seen?
| 1. | neutrophils | 2. | eosinophils |
| 3. | basophils | 4. | lymphocytes |
Subtopic: Blood: White Blood Cells |
82%
From NCERT
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Which vitamin plays a crucial role in the maturation of red blood cells in humans?
| 1. | Thiamine | 2. | Vitamin K |
| 3. | Ascorbic acid | 4. | Cyanocobalamin |
Subtopic: DISORDERS OF CIRCULATORY SYSTEM |
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The principal solute, dissolved in the plasma portion of the blood as well as the extracellular fluid (ECF), amongst the following, will be:
1. haemoglobin
2. Na+
3. K+
4. albumin
1. haemoglobin
2. Na+
3. K+
4. albumin
Subtopic: Lymph | Blood: General Description & RBC |
51%
From NCERT
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Consider the given two statements:
| Assertion (A): | The human heart is myogenic. |
| Reason (R): | Heartbeat is initiated by a group of specialized cardiac muscle cells known as the sinoatrial node. |
| 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. | (A) is False but (R) is True. |
Subtopic: Regulation of Cardiac Activity |
69%
From NCERT
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