Which is Not a Feature of the Ethmoid Bone

Question

Which is not a feature of the ethmoid bone?
A)Cribriform foramina
B)Perpendicular plate
C)Crista galli
D)Inferior nasal concha
E)Orbital plate

Accepted Answer

The inferior nasal concha is not a feature of the ethmoid bone. It is a separate bone in the nasal cavity. The other options are all features of the ethmoid bone. The cribriform foramina are small openings in the ethmoid bone that allow the olfactory nerves to pass through. The perpendicular plate is a flat, vertical bone that helps form the nasal septum. The crista galli is a small ridge that projects upward from the perpendicular plate and anchors the membranes covering the brain. The orbital plate forms part of the medial wall of the orbit.