From the case:
Nasal septum
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The osteocartilaginous structure of the nasal septum viewed from the right.
Case Discussion
The nasal septum is formed primarily by the septal cartilage which lies anteriorly, and posteriorly by two main bones, inferiorly the vomer and superiorly the perpendicular plate of the ethmoid. There are additional small contributions from several other bones.
Original diagram from Gray's anatomy, now out of copyright. This diagram has been reproduced from Gray's Anatomy 20th US edition which has now lapsed into the public domain
(http://www.bartleby.com/107/illus854.html).
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