Sphenoid bone

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Bone: Sphenoid bone
Illu cranial bones.jpg
Cranial Bones. Only the end of the wing of the sphenoid bone is visible
Sphenoid bone, upper surface.
Latin os sphenoidale
Gray's subject #35 147
MeSH Sphenoid+Bone

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


The sphenoid bone (from Greek sphenoeides, "wedgelike") is a bone situated at the base of the skull in front of the temporals and basilar part of the occipital bone.

The sphenoid bone somewhat resembles a butterfly or bat with its wings extended.


Seven bones articulate to form the orbit. The sphenoid bone is one of them, labeled with pink

It is divided into the following parts:

Two sphenoidal conchae are situated at the anterior and posterior part of the body.

The skull from the front. The sphenoid is labeled with yellow to the left of the picture, both in the orbit and behind the zygomatic process

Named features

Various other named features of the sphenoid bone exist:

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 As such, some of the information contained herein may be outdated.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

ca:Esfenoide da:Kileben de:Keilbein it:Osso sfenoide la:Os sphenoidale lt:Pleištakaulis nl:Wiggenbeen no:Kilebeinet sk:Klinová kosť sl:Zagozdnica fi:Kitaluu uk:Клиноподібна кістка