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Q. No.How many of the following statements about the human heart are correct?
I:
The tricuspid valve is present between the left atrium and left ventricle.
II:
Purkinje fibers help in conducting the cardiac impulse to the myocardium of ventricles.
III:
The sinoatrial node acts as the pacemaker of the heart.
IV:
Atrial contraction increases the ventricular filling.
1. One
2. Two
3. Three
4. Four
Subtopic: Human Heart: Gross Anatomy |
81%
From NCERT
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Consider the given two statements:
| Assertion (A): | Blood pressure in the arteries is pulsatile. |
| Reason (R): | This is due to the rhythmic pumping action of the heart. |
| 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: Human Heart: Cardiac Cycle |
94%
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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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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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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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How many of the given statements are true?
1. 0
2. 1
3. 2
4. 3
| I: | The interstitial fluid or tissue fluid has the same mineral distribution as that in plasma. |
| II: | Exchange of nutrients, gases, etc., between the blood and the cells always occur through this fluid. |
| III: | The lymphatic system collects this fluid and drains it back to the major veins. |
1. 0
2. 1
3. 2
4. 3
Subtopic: Lymph |
79%
From NCERT
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Consider the given two statements:
| Assertion (A): | Open circulatory system is considered to be more advantageous than the closed circulatory system. |
| Reason (R): | The flow of fluid can be more precisely regulated in open circulatory system than in closed circulatory system. |
| 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 |
96%
From NCERT
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The atrium and the ventricle of the same side are also separated by:
1. Atrioventricular valves
2. Tricuspid valve
3. Bicuspid valve
4. Atrioventricular septum
1. Atrioventricular valves
2. Tricuspid valve
3. Bicuspid valve
4. Atrioventricular septum
Subtopic: Human Heart: Gross Anatomy |
82%
From NCERT
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The location of atrio-ventricular node in the human heart is:
1. right upper corner of the right atrium
2. lower left corner of the right atrium
3. right upper corner of the right ventricle
4. lower left corner of the right ventricle
1. right upper corner of the right atrium
2. lower left corner of the right atrium
3. right upper corner of the right ventricle
4. lower left corner of the right ventricle
Subtopic: Human Heart: Gross Anatomy |
86%
From NCERT
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If the duration of a cardiac cycle is 0.8 seconds, what number of cardiac cycles are expected to occur in one minute?
1. 48
2. 60
3. 75
4. 100
1. 48
2. 60
3. 75
4. 100
Subtopic: Human Heart: Cardiac Cycle |
84%
From NCERT
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