Perpendicular plate of the ethmoid bone

Definition

The perpendicular plate of the ethmoid bone is a thin, vertical bony structure that forms the upper part of the nasal septum, dividing the nasal cavity into two chambers. It extends downward from the cribriform plate of the ethmoid bone in the skull.

Related terms

Nasal Septum: The partition separating the right and left nasal cavities, primarily formed by the vomer bone and perpendicular plate of the ethmoid bone.

Cribriform Plate: A sieve-like structure at the roof of the nasal cavity, part of the ethmoid bone, allowing for passage of olfactory nerve fibers from the nose to the brain.

Ethmoid Bone: A complex structure situated between the eyes that contributes to forming parts of the orbit, roof of the nose, nasal cavities, and nasal septum