- Source: Pterygomaxillary fissure
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.
References
This article incorporates text in the public domain from page 185 of the 20th edition of Gray's Anatomy (1918)
External links
Anatomy figure: 27:02-01 at Human Anatomy Online, SUNY Downstate Medical Center
UNC.edu
Kata Kunci Pencarian:
- Pterygomaxillary fissure
- Pterygopalatine fossa
- Sulcus (morphology)
- Infratemporal fossa
- Outline of human anatomy
- Posterior superior alveolar nerve
- Cephalometric analysis
- Greater wing of sphenoid bone
- Spheno-maxillary fossa
- Maxilla
