Lesser Superficial Petrosal Nerve


	Latin	n tympanicus
	GraySubject	204
	GrayPage	910
	Image	Gray791png
	Caption	Plan of upper portions of Glossopharyngeal , Vagus , and Accessory Nerve s (Tympanic nerve visible in upper right)
	Image2
	Caption2
	Innervates
	BranchFrom
	BranchTo
	MeshName
	MeshNumber
	DorlandsPre	n_05
	DorlandsSuf	12566985

The Tympanic Nerve (nerve of Jacobson) arises from the Petrous Ganglion , and ascends to the Tympanic Cavity through a small canal on the under surface of the petrous portion of the Temporal Bone on the ridge which separates the Carotid Canal from the Jugular Fossa .

In the tympanic cavity it divides into branches which form the Tympanic Plexus and are contained in grooves upon the surface of the promontory.

This plexus gives off:

(1) the lesser superficial petrosal nerve;

(2) a branch to join the Greater Superficial Petrosal Nerve ; and

(3) branches to the Tympanic Cavity .

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	CATEGORIES ABOUT TYMPANIC NERVE

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Information About

Lesser Superficial Petrosal Nerve