Bony part of pharyngotympanic tube

Bony part of pharyngotympanic tube
Bony part of pharyngotympanic tube
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View of the inner wall of the tympanum
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External and middle ear, opened from the front; right side.
Latin pars ossea tubae auditivae
Gray's subject #230 1043

The bony part of pharyngotympanic tube is about 12 mm. in length. It begins in the carotid wall of the tympanic cavity, below the septum canalis musculotubarii, and, gradually narrowing, ends at the angle of junction of the squama and the petrous portion of the temporal bone, its extremity presenting a jagged margin which serves for the attachment of the cartilaginous portion.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.