NEET Biology question

Which of the following statements is correct regarding neural regulation of cardiac activity?

(A)The cardiac centre lies in medulla oblongata of brain
(B)Sympathetic nerve fibres accelerate the rate of heartbeat and parasympathetic nerve fibres retard the rate of heartbeat
(C)Sensory fibres extend from the receptors present in the walls of aortic arch, carotid sinuses and vena cava to the cardiovascular centre in medulla oblongata
(D)All of theseCorrect

Answer: (D)

Solution

All three statements correctly describe neural regulation of the heart — the cardiac centre in the medulla, acceleration by sympathetic and retardation by

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Question ID VK-116332