For Providers -- Atlas of Human Anatomy

The ethmoid bone, from its interior surface.

Translated by: Ronald A. Bergman, PhD and Adel K. Afifi, MD, MS
Peer Review Status: Internally Peer Reviewed

A) Labyrinthus ethmoidalis (consists of sinus ethmoidales, lamina papyracea, and lamina nasalis with the middle and superior conchae).
B) Lamina perpendicularis.
C) Lamina cribrosis.

a) Uncinate process.
b) Middle concha, middle turbinate of nasal bone.
c) Superior concha, upper turbinate of nasal bone.