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Q. No.Consider the given two statements:
| Assertion (A): | SA node is called the pacemaker of the human heart. |
| Reason (R): | SA node is auto-excitable. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Human Heart: Gross Anatomy |
From NCERT
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Q. No.
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