Pterygomaxillary fissure
anatomical fissure human skull
The pterygomaxillary fissure is a fissure of the human skull. It 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 maxillary artery. The posterior superior alveolar nerve of the maxillary nerve goes from the pterygopalatine fossa to the infratemporal region via this fissure. The pterygopalatine plates are separated laterally from the posterior surface of the body of the maxilla by the pterygomaxillary fissure.
In older texts, the pterygomaxillary fissure is sometimes called the pterygopalatine fissure.
“Pterygomaxillary fissure” enters the record as anatomical fissure human skull. Crown Archives preserves that source wording while asking what Pterygomaxillary, fissure and anatomical can confirm, complicate or overturn.
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This entry incorporates text from “Pterygomaxillary fissure” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.