Bony part of pharyngotympanic tube

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Bony part of pharyngotympanic tube
View of the inner wall of the tympanic cavity
Right outer and middle ear, opened from the front
Latin pars ossea tubae auditivae
Gray's p.1043
Anatomical terminology

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