Ethmoidal notch

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Ethmoidal notch
Gray135.png
Frontal bone. Inner surface. (Ethmoidal notch visible at center.)
Latin incisura ethmoidalis ossis frontalis
Gray's p.137
Anatomical terms of bone

The ethmoidal notch separates the two orbital plates; it is quadrilateral, and filled, in the articulated skull, by the cribriform plate of the ethmoid.

The margins of the notch present several half-cells which, when united with corresponding half-cells on the upper surface of the ethmoid, complete the ethmoidal air cells.

This article incorporates text from a public domain edition of Gray's Anatomy.