MRCEM Notes

Temporal fossa

Boundaries:
  • Medial: frontal bone, parietal bone, temporal bone, and sphenoid bone.
  • Lateral: Temporal fascia
  • Anterior: Posterior surface of the frontal process of the zygomatic bone and the posterior surface of the zygomatic process of the frontal bone.
  • Superior: Pair of temporal lines (superior and inferior temporal lines - see second diagram below) that arch across the skull from the zygomatic process of the frontal bone to the supramastoid crest of the temporal bone
  • Inferior: Zygomatic arch laterally and by the infratemporal crest of the greater wing of the sphenoid medially

Contents
  • Temporalis muscle
  • Deep temporal arteries
  • Deep temporal nerves
  • Superficial temporal artery
  • Zygomaticotemporal nerve

Diagram illustrating the temporal fossa

Wikipedia

Diagram illustrating temporal lines

Wikipedia
Full-size image