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Temporal Bone Anatomy

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  • Squamous portion of the temporal bone

    The flat, thin, superior part of the temporal bone forming part of the side of the skull.
  • Zygomatic process

    A projection of the temporal bone that articulates with the zygomatic bone to form the cheekbone.
  • Mandibular fossa

    A depression in the temporal bone that articulates with the mandible to form the temporomandibular joint.
  • Tympanic portion

    Part of the temporal bone surrounding the external acoustic meatus and contributing to the ear canal.
  • External acoustic meatus

    The canal in the temporal bone leading from the outer ear to the tympanic membrane (eardrum).
  • Internal acoustic meatus

    A canal in the temporal bone transmitting nerves from the inner ear to the brain.
  • Styloid process

    A slender, pointed projection of the temporal bone serving as an attachment point for muscles and ligaments of the neck.
  • Jugular foramen

    An opening in the temporal bone allowing passage of the jugular vein and cranial nerves IX, X, and XI.
  • Mastoid process

    A conical projection of the temporal bone behind the ear that serves as an attachment for neck muscles.