What happens to the heart of a frog when the | vedclass

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(B) The vagus nerve is a cranial nerve that carries parasympathetic fibers to the heart. Stimulation of the vagus nerve releases acetylcholine,which a

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Heartbeat will decrease.

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(B) The vagus nerve is a cranial nerve that carries parasympathetic fibers to the heart. Stimulation of the vagus nerve releases acetylcholine,which acts on the pacemaker cells of the heart. This action leads to a decrease in the heart rate (bradycardia) and can even cause the heart to stop beating temporarily if the stimulation is strong enough. Therefore,stimulation of the vagus nerve in a frog leads to a decrease in the heartbeat.

What happens to the heart of a frog when the vagus nerve is stimulated?

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