Week 4 - Cranial Nerves

Question 1

What muscles does the facial nerve innervate?

Answer 1

1. Muscles of facial expression
2. Posterior belly of digastric
3. Stylohyoid
4. Stapedius

Question 2

What does the general somatic afferent component of the facial nerve supply?

Answer 2

A patch of skin over the mastoid process and auricle

Question 3

What hole does the chorda tympani branch of the facial nerve exit the skull through?

Answer 3

The petrotympanic fissure - enters the infratemporal fossa

Question 4

How does the facial nerve exit the skull?

Answer 4

Through the stylomastoid foramen