In the skull, the pterygopalatine fossa is the space between the lateral pterygoid plate (which is part of the sphenoid bone), and the palate. A hippopotamus skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ... Pterygoid can refer to: a plate near the Vomer bone a muscle such as Lateral pterygoid muscle or Medial pterygoid muscle This is a disambiguation page — a navigational aid which lists pages that might otherwise share the same title. ... The sphenoid bone (os sphenoidale) is a bone situated at the base of the skull in front of the temporals and basilar part of the occipital. ... The palate is the roof of the mouth in humans and vertebrate animals. ...
Through the inferior orbital fissure the orbit communicates with the temporal, infratemporal, and pterygopalatine fossæ; the fissure transmits the maxillary nerve and its zygomatic branch, the infraorbital vessels, the ascending branches from the sphenopalatine ganglion, and a vein which connects the inferior ophthalmic vein with the pterygoid venous plexus.
—The pterygopalatinefossa is a small, triangular space at the angle of junction of the inferior orbital and pterygomaxillary fissures, and placed beneath the apex of the orbit.
This fossa communicates with the orbit by the inferior orbital fissure, with the nasal cavity by the sphenopalatine foramen, and with the infratemporal fossa by the pterygomaxillary fissure.
In the infratemporal fossa, the maxilla and the lower part of the lateral pterygoid plate are joined by the pyramidal process of the palatine bone; they separate above at the pterygomaxillary fissure, which leads into the pterygopalatinefossa.
Connects the middle fossa with the posterior wall of the pterygopalatinefossa.
The lateral wall of the nose is separated from the maxilla by the perpendicular plate of the palatine bone.
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