Dorsum sellae

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Bone: Dorsum sellae
Sphenoid bone. Upper surface. (Dorsum sellae is labeled in the white portion in the center.)
Base of the skull. Upper surface. (Dorsum sellae is not labeled, but sphenoid bone is in yellow, and Dorsum sellae would horizontally be at the exact center, and vertically at the level of the posterior clinoid process.)
Gray's	subject #35 147

In the sphenoid bone, the anterior boundary of the sella turcica is completed by two small eminences, one on either side, called the middle clinoid processes, while the posterior boundary is formed by a square-shaped plate of bone, the dorsum sellæ, ending at its superior angles in two tubercles, the posterior clinoid processes, the size and form of which vary considerably in different individuals.

Additional images

Tentorium cerebelli from above.

External links

• Roche Lexicon - illustrated navigator, at Elsevier 34257.000-2
• SUNY Labs 22:os-0912

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Template:Skull