ANATOMY OF THE EAR  
The tympanic plexus

The tympanic plexus

Description : This plexus of nerves is derived chiefly from the tympanic branch of the glossopharyngeal nerve (IX) and from branches of the sympathetic plexus of the internal carotid artery. The tympanic plexus lies beneath the mucous membrane on the promontory of the medial wall of the tympanic cavity, where it can occasionally be seen through a defect in the tympanic membrane. The tympanic plexus sends branches to the mucous membrane lining the middle ear cleft and gives off secretomotor fibres that eventually reach the parotid gland.

Powered by Gallery v1 RSS