Body Region: Head & Skull

  • May 2, 2026
    The mental symphysis is the fibrocartilaginous midline junction between the two mandibular halves at the chin, which fuses completely by…
  • May 2, 2026
    The internal occipital protuberance is the central projection on the inner surface of the occipital bone where the falx cerebri,…
  • May 2, 2026
    The superior nuchal line is a curved bony ridge running horizontally across the external surface of the occipital bone from…
  • May 2, 2026
    The digastric notch (mastoid notch) is a groove on the medial surface of the mastoid process that provides origin for…
  • May 2, 2026
    The lacrimal fossa is a vertical groove in the anteromedial orbital wall formed by the anterior lacrimal crest of the…
  • May 2, 2026
    The nasolacrimal canal is the bony channel connecting the lacrimal fossa in the medial orbit to the inferior meatus of…
  • May 2, 2026
    The tegmen tympani is the thin bony roof of the middle ear cavity (tympanic cavity), formed by the petrous temporal…
  • May 2, 2026
    The dorsum sellae is the posterior wall of the sella turcica on the body of the sphenoid bone, rising vertically…
  • May 2, 2026
    The jugum sphenoidale (planum sphenoidale) is the flat superior surface of the sphenoid body anterior to the chiasmatic groove (optic…
  • May 2, 2026
    The foramen lacerum is an irregular opening at the skull base between the apex of the petrous temporal bone, the…

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