Question

The vagus nerve is the _______ cranial nerve.

• A. $7^{th}$
• B. $5^{th}$
• C. ${10}^{th}$
• D. $9^{th}$

Answer 1

Answer: (C)

${10}^{th}$

The vagus nerve historically cited as the pneumogastric nerve, is the tenth cranial nerve or CN X, and interfaces with parasympathetic control of the heart, lungs, and digestive tract. The vagus nerves are paired but are normally referred to in the singular. It is the longest nerve of the autonomic nervous system in the human body.

So the correct option is '10th'.