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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 infratemporal space (also termed the infra-temporal space or the infra-temporal portion of the deep temporal space) [1] is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a potential space in the side of the head, and is paired on either side.
The otic ganglion is a small parasympathetic ganglion located immediately below the foramen ovale in the infratemporal fossa and on the medial surface of the mandibular nerve. It is functionally associated with the glossopharyngeal nerve and innervates the parotid gland for salivation. It is one of four parasympathetic ganglia of the head and neck.
In anatomy, a fossa (/ ˈ f ɒ s ə /; [1] [2] pl.: fossae (/ ˈ f ɒ s iː / or / ˈ f ɒ s aɪ /); from Latin 'ditch, trench') is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone). [3]
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.
In the newborn, the foramen spinosum is about 2.25 mm long and in adults about 2.56 mm. The width of the foramen variesfrom 1.05 mm to about 2.1 mm in adults. [5] The average diameter of the foramen spinosum is 2.63 mm in adults. [6] It is usually between 3 and 4 mm away from the foramen ovale in adults. [7]
The structure connects the external auditory canal to the infratemporal fossa. Reduction in thickness of the temporal bone may also occur in the same location. [2] During development of the skull, the foramen tympanicum normally closes by the age of 5 years. The foramen, however, may persists in rare cases resulting in its presence in adults.
The floor of the fossa features the pterion (the junction of these four bones). [1]: 357 Lateral/roof: temporal fascia. [1]: 357 Anterior: (posterior surface of) the frontal process of zygomatic bone, [citation needed] (the posterior surface of [citation needed]) the zygomatic process of frontal bone, and the maxilla. [1]: 357