Vomer ethmoid

The inferior border articulates with the crest formed by the maxillæ and palatine bones.
 * The vomer articulates with six bones:
 * two of the cranium, the sphenoid and ethmoid.
 * The superior border, the thickest, presents a deep furrow, bounded on either side by a horizontal projecting ala of bone; the furrow receives the rostrum of the sphenoid, while the margins of the alæ articulate with the vaginal processes of the medial pterygoid plates of the sphenoid behind, and with the sphenoidal processes of the palatine bones in front.
 * four of the face, the two maxillae; and the two palatine bones.
 * It also articulates with the septal cartilage of the nose.

http://en.wikipedia.org/wiki/File:Gray146.png (inferior view of sphenoid bone. Articulation area with alar of vomer is marked.

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