Petrosal process

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Petrosal process
Gray145.png
Sphenoid bone. Upper surface. (Petrosal process labeled at bottom center.)
Gray's p.147
Anatomical terms of bone

On either side of the dorsum sellae of the sphenoid bone is a notch for the passage of the abducent nerve, and below the notch a sharp process, the petrosal process, which articulates with the apex of the petrous portion of the temporal bone, and forms the medial boundary of the foramen lacerum.

This article incorporates text from a public domain edition of Gray's Anatomy.