Posterior ethmoidal foramen - Foramen ethmoidale posterius



Lateral to either olfactory groove are the internal openings of the anterior and posterior ethmoidal foramina (or canals). The posterior ethmoidal foramen opens at the back part of this margin under cover of the projecting lamina of the sphenoid, and transmits the posterior ethmoidal vessels and nerve.

This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from


General Anatomy > Bones; Skeletal system > Axial skeleton > Cranium > Orbit > Medial wall > Posterior ethmoidal foramen