Ethmoidal spine

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.

Ethmoidal spine
Sphenoid bone. Upper surface. (Ethmoidal spine visible at top.)
Anatomical terms of bone [edit on Wikidata]

Additional images

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  Base of the skull. Upper surface.

References

This article incorporates text in the public domain from page 147 of the 20th edition of Gray's Anatomy (1918)