Mastoid foramen

Mastoid foramen
Bone: Mastoid foramen
Left temporal bone. Inner surface. (Mastoid foramen labeled at bottom left.)
Base of the skull. Upper surface. (Temporal bone is pink, and label for mastoid foramen is at left, second from the bottom.)
Latin foramen mastoideum
Gray's subject #34 141

The mastoid foramen is a large hole in the posterior border of the temporal bone. It transmits a Mastoid emissary vein to the sigmoid sinus and a small branch of the occipital artery, the posterior meningeal artery to the dura mater.


The position and size of this foramen are very variable; it is not always present; sometimes it is situated in the occipital bone, or in the suture between the temporal and the occipital.

It transmits (1) an emissary vein connecting the sigmoid sinus with the posterior auricular vein and (2) a meningeal branch of the occipital artery

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • mastoid foramen — foramen mastoideum [TA] a prominent opening in the temporal bone posterior to the mastoid process and near its occipital articulation; an artery and vein usually pass through it …   Medical dictionary

  • Mastoid cells — Coronal section of right temporal bone. (Mastoid cells labeled at bottom left.) Latin cellulae mastoideae Gray s …   Wikipedia

  • Mastoid notch — Left temporal bone. Inferior surface. (Mastoid notch visible at bottom center.) Latin incisura mastoidea ossis temporalis Gray s …   Wikipedia

  • Foramen magnum — Bone: Foramen magnum Occipital bone. Inner surface. Gray s subject #31 129 …   Wikipedia

  • Mastoid part of the temporal bone — Bone: Mastoid portion of the temporal bone Side view of head, showing surface relations of bones …   Wikipedia

  • Mastoid process — Bone: Mastoid process Side view of head, showing surface relations of bones. (Mastoid process labeled near center.) …   Wikipedia

  • Mastoid antrum — Bone: Mastoid antrum Coronal section of right temporal bone. ( Tympanic antrum labeled at upper left.) …   Wikipedia

  • Mastoid canaliculus — Bone: Mastoid canaliculus Left temporal bone. Inferior surface. (Label for mastoid canaliculus is on left, sixth from the top.) Latin c. mastoideus Gray s …   Wikipedia

  • Foramen — A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale. * * * An aperture or perforation through a bone or a membranous structure. SYN: trema (1). [L. an… …   Medical dictionary

  • Mandibular foramen — Bone: Mandibular foramen Mandible. Inner surface. Side view. (Mandibular foramen visible at left.) Latin foramen mandibulae Gray s …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”