Left temporal bone. Outer surface. (Petrotympanic fissure is labeled at left, fourth from top.)
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|Latin
|colspan="2"|f. petrotympanica
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|colspan="2"|[subject #34 ]
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|System
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|Precursor
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|MeSH
|colspan="2"|[]
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|Dorlands/Elsevier
|colspan="2"|[f_08/12365631]
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The mandibular fossa is bounded, in front, by the articular tubercle; behind, by the tympanic part of the bone, which separates it from the external acoustic meatus; it is divided into two parts by a narrow slit, the petrotympanic fissure (Glaserian fissure).
