Internal occipital protuberance

Bone: Internal occipital protuberance
Occipital bone. Inner surface. (Internal occipital protuberance visible at center, at the center of the horizontal and vertical lines.)
Base of the skull. Upper surface. (Internal occipital protuberance not labeled, but occipital bone is in blue at bottom, and Internal occipital protuberance is horizontally at the level of the transverse sinus, and vertically at the exact center.)
Latin	protuberantia occipitalis interna
Gray's	subject #31 130

Along the internal surface of the occipital bone, at the point of intersection of the four divisions of the cruciate eminence is the internal occipital protuberance. Running transversely on either side is a groove for the transverse sinus.

See also

• External occipital protuberance

External links

• Roche Lexicon - illustrated navigator, at Elsevier 34257.000-2
• Diagram at uni-mainz.de

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 As such, some of the information contained within it may be outdated.