Ethmoidal spine

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Bone: Ethmoidal spine
Sphenoid bone. Upper surface. (Ethmoidal spine visible at top.)
Gray's	subject #35 147

The superior surface of the body of the sphenoid bone (Fig. 145) presents in front a prominent spine, the ethmoidal spine, for articulation with the cribriform plate of the ethmoid; behind this is a smooth surface slightly raised in the middle line, and grooved on either side for the olfactory lobes of the brain.

Additional images

Base of the skull. Upper surface.

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 As such, some of the information contained herein may be outdated.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