Bone
Ethmoid bone
Between the orbits and nose
High-yield
The cribriform plate transmits the olfactory nerves (CN I); fracture can cause CSF rhinorrhea and anosmia.
Overview
A light, spongy bone forming the medial orbital walls, the roof of the nasal cavity, and part of the nasal septum, and containing the ethmoidal air cells.
Reference facts
- Bone type
Irregular
- Key landmarks
Cribriform plate; Crista galli; Perpendicular plate; Superior and middle nasal conchae; Ethmoidal air cells
- Articulations
Frontal; Sphenoid; Nasal, lacrimal, maxilla, palatine, vomer bones