Question

Which of the following cranial nerves can regulate heart beat? (a) X (b) IX (c) VIII...

Which of the following cranial nerves can regulate heart beat?

(a) X

(b) IX

(c) VIII

(d) VII.

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Answer #1

Ans-(a) X

Explanation-

The Vagus Nerve is the tenth cranial nerve or CN X which interfaces with the parasympathetic control of the heart, lungs, and digestive tracts. The Parasympathetic innervation of the heart is regulated by vagus nerve and is shared by thoracic ganglia. The Vagal and spinal ganglionic nerves mediate the lowering of the heart rate.

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