- 1(current)
Q. No.Read the given statements and select the correct option.
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
| 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
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
Blood pressure in the pulmonary artery is
a. More than that in the vena cava
b. Same as that in the aorta
c. 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
a. More than that in the vena cava
b. Same as that in the aorta
c. 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.
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.
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 |
 86%
Level 1: 80%+
Hints
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
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 |
 53%
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
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 |
 61%
Level 2: 60%+
Hints
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.