Petrosal fossula - Fossula petrosa

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Description

The petrosal fossula is a small depression in the bony ridge between the carotid canal and the jugular fossa, occupied by the tympanic ganglion of the glossopharyngeal nerve.


Text by Antoine Micheau, MD - Copyright IMAIOS

Anatomical hierarchy

General Anatomy > Bones; Skeletal system > Axial skeleton > Cranium > Temporal bone > Petrous part > Inferior surface of petrous part > Petrosal fossula

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