Assertion :On touching radial artery in our wrist, we feel pulse waves.
Reason: The heart beats originate from sinoatrial node on the right atrium.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The pulse we feel on touching our wrist is the radial pulse. Pulse rate is exactly same as heart rate. It is rhythmic contraction and relaxation of aorta and other main arteries. Hence, assertion is true.
Sinoatrial node is known as pacemaker of the heart and located in right atrium. It generates the impulses which leads to contraction of atria and maintains a regular heartbeat. Hence, reason is also true but it is not correct explanation for assertion.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.

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Assertion :On touching radial artery in our wrist, we feel pulse waves. Reason: The heart beats originate from sinoatrial node on the right atrium.

Assertion :On touching radial artery in our wrist, we feel pulse waves.
Reason: The heart beats originate from sinoatrial node on the right atrium.