Temporal fossa

Temporal fossa

The Temporal fossa is an anatomical term referring to a shallow depression located on the side of the skull, above the zygomatic arch and deep to the temporalis muscle. It is one of the key features of the temporal bone, which forms part of the cranium.

Anatomy

The temporal fossa is bounded by several structures:

• Anteriorly: The frontal process of the zygomatic bone and the zygomatic process of the frontal bone.
• Superiorly: The temporal line of the parietal bone and the sphenoid bone.
• Posteriorly: The mastoid process of the temporal bone and the parietal bone.
• Inferiorly: The zygomatic arch and the infratemporal crest of the sphenoid bone.

The floor of the temporal fossa is formed by parts of four bones: the parietal bone, the temporal bone, the sphenoid bone, and the frontal bone.

Clinical significance

Due to its location, the temporal fossa may be involved in several medical conditions and procedures, such as temporal arteritis, temporomandibular joint dysfunction, and craniotomy.

See also

• Temporal bone
• Temporal muscle
• Zygomatic arch

References

Temporal fossa Resources
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