- 1(current)
Q. No.Read the given statements and select the correct option.
| Statement A: | Though the human heart is autoexcitable, its functions can be moderated by both neural and hormonal mechanisms. |
| Statement B: | Lymph is almost similar to blood except for the protein content and the formed elements. |
| 1. | Both Statement A and Statement B are correct |
| 2. | Both Statement A and Statement B are incorrect |
| 3. | Only Statement A is incorrect |
| 4. | Only Statement B is incorrect |
Subtopic: Â Lymph |Â Regulation of Cardiac Activity |
 79%
Level 2: 60%+
Hints
Blood pressure in the pulmonary artery is
Select the option with correct statements(s)
| 1. | More than that in the vena cava |
| 2. | Same as that in the aorta |
| 3. | More than that in the pulmonary vein |
Select the option with correct statements(s)
| 1. | a and b | 2. | b and c |
| 3. | Only c | 4. | a and c |
Subtopic: Â Blood: General Description & RBC: Part 1 |Â Regulation of Cardiac Activity |
 52%
Level 3: 35%-60%
Hints
| Assertion (A) | Human heart is myogenic. |
| Reason (R) | Normal activities of the heart are regulated by the human brain. |
| 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: Â Regulation of Cardiac Activity |
 72%
Level 2: 60%+
Hints
| Assertion (A): | The neural signals through the sympathetic nerves increase the heart-beat, thereby decreasing the cardiac output. |
| Reason (R): | Adrenalin secretion drastically decrease cardiac output. |
| 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: Â Regulation of Cardiac Activity |
 83%
Level 1: 80%+
Hints
The mammalian heart beat:
| 1. | Stops when the nerve supply to the heart is cut |
| 2. | Originates at AV-node |
| 3. | Decreases when stretch receptors in the vena cava are stimulated |
| 4. | Slows down when the activity in the vagus nerve increases |
Subtopic: Â Regulation of Cardiac Activity |
 52%
Level 3: 35%-60%
Hints
If it was possible to genetically engineer humans to be able to run long distances faster at high altitudes, which of the following would not help?
| 1. | Increasing the thickness of cellular lining of the alveoli |
| 2. | Decreasing the average size of the alveoli |
| 3. | Increasing the amount of Hb in each RBC |
| 4. | More than one options as mentioned above |
Subtopic: Â Regulation of Cardiac Activity |
 60%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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