Ethmoidal notch

Ethmoidal notch

Infobox Bone
Name = Ethmoidal notch
Latin = incisura ethmoidalis ossis frontalis
GraySubject = 33
GrayPage = 137



Caption = Frontal bone. Inner surface. (Ethmoidal notch visible at center.)


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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.


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