- 1(current)
Q. No.Which among the following is correct during each cardiac cycle?
| 1. | The volume of blood pumped by right and left ventricles is same. |
| 2. | The volume of blood pumped by right and left ventricles is different. |
| 3. | The volume of blood received by right and left atria is different. |
| 4. | The volume of blood received by pulmonary arteries and aorta is different. |
Subtopic: Â Human Heart: Double Circulation |
 74%
Level 2: 60%+
Hints
Identify the incorrectly matched pair:
1. Average duration of a cardiac cycle: 0.8 sec
2. Stroke volume of each ventricle: 120 ml
3. Highest normal systolic blood pressure: 140 mm Hg
4. Highest normal diastolic blood pressure: 90 mm Hg
Subtopic: Â Human Heart: Double Circulation |
 85%
Level 1: 80%+
Hints
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The sinoatrial node is the normal pacemaker of the human heart because it:
| 1. | can form action potentials that can spread throughout the rest of the heart |
| 2. | depolarizes to its threshold potential before other pacemakers in the heart |
| 3. | is located in the top of right atrial wall |
| 4. | is most likely to form an ectopic focus |
Subtopic: Â Human Heart: Double Circulation |
Level 3: 35%-60%
Hints
Pulmonary veins return the oxygenated blood from the lungs to:
| 1. | right atrium | 2. | left atrium |
| 3. | right ventricle | 4. | left ventricle |
Subtopic: Â Human Heart: Double Circulation |
 85%
Level 1: 80%+
Hints
The innermost layer of blood vessel walls made up of one layer of endothelium and in direct contact with the blood is:
| 1. tunica adventitia | 2. tunica intima |
| 3. tunica media | 4. tunica muscularis |
Subtopic: Â Human Heart: Double Circulation |
 86%
Level 1: 80%+
Hints
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Subtopic: Â Human Heart: Double Circulation |
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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