NEET2025Zoology-Human Physiology

NEET 2025 Zoology Cardiovascular System Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

Cardiac activities of the heart are regulated by:

A. Nodal tissue

B. A special neural centre in the medulla oblongata

C. Adrenal medullary hormones

D. Adrenal cortical hormones

Choose the correct answer from the options given below:

A

A, B and C Only

B

A, B, C and D

C

A, C and D Only

D

A, B and D Only

Correct Answer

Option A

Detailed Explanation

Cardiac activities are primarily regulated by nodal tissue and neural centers in the brain, with adrenal medullary hormones influencing heart rate.

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