Neural Control and CoordinationHard

Question

Which of the following cranial nerves can regulate heart beat ?

Options

A.X
B.IX
C.VIII
D.VII

Solution

X cranial nerve is vagus or pneumogastric nerve which originates from lateral side of medulla oblongata behind IX cranial nerve. It is a mixed nerve, its sensory fibres innervate to receptor present in the wall of viscral ofgans. Whereas its motor fibres innervates to muscles in the wall of visceral organs-like heart, alimentary canal, trachea lungs, kidneys, genital tracts etc.

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