Chapter contents Branchial motor Visceral motor Visceral sensory General sensory Special sensory

Cranial Nerve IX - Glossopharyngeal Page 7 of 22 Branchial motor component Voluntary control of the stylopharyngeus muscle Signals for the voluntary movement of stylopharyngeus muscle originate in the pre-motor and motor cortex (in association with other cortical areas) and pass via the corticobulbar tract in the posterior limb of the internal capsule to synapse bilaterally on the ambiguus nuclei in the medulla. Figure 9-7. Voluntary control of the stylopharyngeus muscle.

Last revised: January 9, 1998