Pterygomaxillary fissure

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Pterygomaxillary fissure
Left infratemporal fossa. (Pterygomaxillary fissure labeled at bottom left.)
Latin fissura pterygomaxillaris
Gray's subject #46 185
Dorlands/Elsevier f_08/12365675

The pterygomaxillary fissure is vertical, and descends at right angles from the medial end of the inferior orbital fissure; it is a triangular interval, formed by the divergence of the maxilla from the pterygoid process of the sphenoid.

It connects the infratemporal with the pterygopalatine fossa, and transmits the terminal part of the internal maxillary artery.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.