- 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
- Mastoid+foramen at eMedicine Dictionary
- Roche Lexicon - illustrated navigator, at Elsevier 34257.000-1
- Roche Lexicon - illustrated navigator, at Elsevier 34257.000-2
- Akram Abood Jaffar: Personal website, Anatomical variations
Bones of head and neck: the neurocranium of the skull (TA A02.1.01–07, GA 2.129–155) OccipitalOther Parietal Frontal Temporal SphenoidSurfacesOther EthmoidPlatesSurfaces
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