| Ethmoidal notch | |
|---|---|
 Frontal bone. Inner surface (ethmoidal notch visible at center) | |
| Details | |
| Identifiers | |
| Latin | incisura ethmoidalis ossis frontalis |
| TA98 | A02.1.03.028 |
| TA2 | 548 |
| FMA | 57388 |
| 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 sinuses.