Yale- Cranial Nerve 7, pg. 5 Page header & navigation buttons.


Chapter contents

Branchial motor

Visceral motor

Special sensory

General sensory

Peripheral lesions

 
Cranial Nerve VII - Facial Nerve Page 5 of 28

Intracranial Course, cont'd

At the geniculate ganglion the various components of the facial nerve take different pathways.

Fibers of the branchial motor component pass through the geniculate ganglion without synapsing, turn 90 degrees posteriorly and laterally before curving inferiorly just medial to the middle ear to exit the skull through the stylomastoid foramen.

The nerve to the stapedius muscle is given off from the facial nerve in its course through the petrous portion of the temporal bone.

Figure 7-5. Intracranial course- branchial motor components of the facial nerve.
 
 
Figure 7-5. Intracranial course- branchial motor components of the facial nerve. Geniculate ganglion and inner ear.


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Last revised: March 22, 1998