Tags: Anatomical Structure, 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.
