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The vomer (or vomer bone, Latin: vomer) is an unpaired midline bone of the skull. Along with the perpendicular plate of the ethmoid bone the vomer forms the bony nasal septum.

Vomer, three aspects (single bone, with adjacent bones from two sides)
Vomer by Anatomy Next


The vomer is a single facial bone that takes a form of a plate and its superior border gives two extensions called wings. With the help of these wings the vomer attaches to the inferior surface of the body of the sphenoid bone. The vomer also articulates with the ethmoid bone, both palatine bones, and both maxillary bones.

The vomer is situated in the sagittal plane and forms part of the inferior part of the nasal septum, while the perpendicular plate of the ethmoid bone forms the superior part. The nasal septum separates the nasal cavity in two parts and forms the medial wall of each part.