Chapter contents
Branchial motor
Visceral motor
Visceral sensory
General sensory
Special sensory| Cranial Nerve IX - Glossopharyngeal | Page 1 of 22 |
Overview
The glossopharyngeal nerve consists of five components with distinct functions:
|
Brancial motor (special visceral efferent) |
Supplies the stylopharyngeus muscle. |
|
Visceral motor (general visceral efferent) |
Parasympathetic innervation of the smooth muscle and glands of the pharynx, larynx, and viscera of the thorax and abdomen. |
|
Visceral sensory (general visceral afferent) |
Carries visceral sensory information from the carotid sinus and body. |
|
General sensory (general somatic afferent) |
Provides general sensory information from the skin of the external ear, internal surface of the tympanic membrane, upper pharynx, and the posterior one-third of the tongue. |
|
Special sensory (special afferent) |
Provides taste sensation from the posterior one-third of the tongue. |
Figure 9-1. Overview of the glossopharyngeal nerve.
