Middle Cranial Fossa

Middle Cranial Fossa

The middle fossa, deeper than the anterior cranial fossa, is narrow medially and widens laterally to the sides of the skull. It is separated from the posterior fossa by the clivus and the petrous crest.

It is bounded in front by the posterior margins of the lesser wings of the sphenoid bone, the anterior clinoid processes, and the ridge forming the anterior margin of the chiasmatic groove; behind, by the superior angles of the petrous portions of the temporal bones and the dorsum sellæ; laterally by the temporal squamæ, sphenoidal angles of the parietals, and greater wings of the sphenoid. It is traversed by the squamosal, sphenoparietal, sphenosquamosal, and sphenopetrosal sutures.

It houses the temporal lobes of the brain.

Read more about Middle Cranial Fossa:  Middle Part, Lateral Parts

Other articles related to "middle, fossa, cranial, cranial fossa, middle cranial fossa":

Cerebellopontine Angle Syndrome - Treatment: Surgical
... in the management of acoustic neuromas the retrosigmoid, translabyrinthine, and middle fossa approaches ... The retrosigmoid approach provides the best wide-field visualization of the posterior fossa ... The inferior portions of the cerebellopontine angle and cranial nerves are not as well visualized as they are in the retrosigmoid approach ...
Base Of Skull - Additional Images
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Cerebellopontine Angle Syndrome - Treatment: Surgical - Middle Cranial Fossa Approach
... Although some surgeons use an extended middle cranial fossa approach for tumors that extend a centimeter or more outside the porus acusticus into the cerebellopontine angle ... neck mobility is limited or concern exists that forced head turning will limit posterior fossa circulation or aggravate cervical spine disorders, then a true ... The dura is elevated from the floor of the middle cranial fossa, and osmotic diuretics, head elevation, hyperventilation, and steroids are used to limit cerebral edema ...
Middle Cranial Fossa - Lateral Parts
... The lateral parts of the middle fossa are of considerable depth, and support the temporal lobes of the brain ... brain convolutions and traversed by furrows for the anterior and posterior branches of the middle meningeal vessels ... the temporal squama and passes on to the parietal near the middle of its lower border ...

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