Which cranial nerve controls most of the muscles of facial expression?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the SkillsUSA Health Knowledge Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which cranial nerve controls most of the muscles of facial expression?

Explanation:
The facial nerve is responsible for most of the muscles used in facial expression. This is cranial nerve VII, and its motor fibers innervate the muscles around the eyes, mouth, and forehead, letting you smile, frown, raise your brows, blink, and more. It travels through the facial canal and exits the skull at the stylomastoid foramen before branching to the expression muscles. Other nerves listed serve different roles: the olfactory nerve handles smell, the optic nerve handles vision, and the trigeminal nerve mainly provides facial sensation and innervation to the muscles used for chewing, not the expressive muscles.

The facial nerve is responsible for most of the muscles used in facial expression. This is cranial nerve VII, and its motor fibers innervate the muscles around the eyes, mouth, and forehead, letting you smile, frown, raise your brows, blink, and more. It travels through the facial canal and exits the skull at the stylomastoid foramen before branching to the expression muscles. Other nerves listed serve different roles: the olfactory nerve handles smell, the optic nerve handles vision, and the trigeminal nerve mainly provides facial sensation and innervation to the muscles used for chewing, not the expressive muscles.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy