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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Petrous temporal bone

Introduction

Template:Infobox Bone

The temporal bones are situated at the sides and base of the skull.

The temporal bone supports that part of the face known as the temple.

Parts

Parts

Each consists of five parts:

Composition

Composition

The structure of the squama is like that of the other cranial bones: the mastoid portion is spongy, and the petrous portion dense and hard.

Diagnosis

Diagnosis

Physical Examination

Ear Nose and Throat

  • Axial CT scan showing oblique left temporal bone fracture [1].
    Axial CT scan showing oblique left temporal bone fracture [1].
  • Hemotympanum (blood in the middle ear) causes a bluish discoloration of the drum [2].
    Hemotympanum (blood in the middle ear) causes a bluish discoloration of the drum [2].
  • Ruptured tympanic membrane and blood in the ear canal (surgeon's view)[3].
    Ruptured tympanic membrane and blood in the ear canal (surgeon’s view)[3].
  • Battle's Sign. Bluish discoloration of the post-auricular region, associated with temporal bone fractures [4].
    Battle’s Sign. Bluish discoloration of the post-auricular region, associated with temporal bone fractures [4].
  • Cerebrospinal fluid (CSF) otorrhea [5].
    Cerebrospinal fluid (CSF) otorrhea [5].
  • Oblique left temporal bone fracture line crossing the mastoid process, into Henle's spine and the external auditory canal (surgeon's view)[6].
    Oblique left temporal bone fracture line crossing the mastoid process, into Henle’s spine and the external auditory canal (surgeon’s view)[6].
Additional images

Additional images

  • The skull from the front.
    The skull from the front.
  • Sphenoid bone visible center right.
    Sphenoid bone visible center right.
  • Side view of the skull.
    Side view of the skull.
  • Left infratemporal fossa.
    Left infratemporal fossa.
  • Sagittal section of skull.
    Sagittal section of skull.
  • Articulation of the mandible. Lateral aspect.
    Articulation of the mandible. Lateral aspect.
  • Base of the skull. Upper surface.
    Base of the skull. Upper surface.
See also

See also

External links

Template:Gray’s Template:Cranium

ca:Os temporal de:Schläfenbein eo:Temporalo it:Osso temporale he:עצם הרקה la:Ossa temporalia lv:Deniņu kauls lt:Smilkinkaulis sv:Tinningben uk:Скронева кістка sl:Senčnica


Template:WikiDoc Sources

  1. ↑ http://www.ghorayeb.com
  2. ↑ http://www.ghorayeb.com
  3. ↑ http://www.ghorayeb.com
  4. ↑ http://www.ghorayeb.com
  5. ↑ http://www.ghorayeb.com
  6. ↑ http://www.ghorayeb.com

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]