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The boundaries of the infratemporal fossa occur: anteriorly, by the infratemporal surface of the maxilla, [1] and the ridge which descends from its zygomatic process. This contains the alveolar canal. posteriorly, by the tympanic part of the temporal bone, [1] and the spina angularis of the sphenoid.
The lateral surface of the greater wing of the sphenoid is convex, and divided by a transverse ridge, the infratemporal crest, into two portions.. The superior or temporal portion, convex from above downward, concave from before backward, forms a part of the temporal fossa, and gives attachment to the Temporalis; the inferior or infratemporal, smaller in size and concave, enters into the ...
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 runs across the floor of this fossa [2] along a groove oriented in the direction the foramen ovale and situated parallel and anterolateral to the groove for the greater petrosal nerve and its groove. [3]: 509 It exits the skull via canaliculus innominatus [4] and enters the infratemporal fossa. In the fossa, its fibres synapse at the otic ...
After branching off the maxillary artery in the infratemporal fossa, it runs through the foramen spinosum to supply the dura mater (the outer meningeal layer) and the calvaria. The middle meningeal artery is the largest of the three (paired) arteries that supply the meninges, the others being the anterior meningeal artery and the posterior ...
Chorda tympani then exits the skull by descending through the petrotympanic fissure into the infratemporal fossa. Here it joins the lingual nerve, a branch of the mandibular nerve (CN V 3). Traveling with the lingual nerve, the fibers of chorda tympani enter the sublingual space to reach the anterior 2/3 of the tongue and submandibular ganglion ...
The anterior part of the lateral surface is rough, for articulation with the tuberosity of the maxilla; its posterior part consists of a smooth triangular area which appears, in the articulated skull, between the tuberosity of the maxilla and the lower part of the lateral pterygoid plate, and completes the lower part of the infratemporal fossa.
Anatomy figure: 27:02-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Schematic view of key landmarks of the infratemporal fossa." "Anatomy diagram: 34257.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2013-02-12.