What are the two bony structures that make up the nasal septum?

The nasal septum is comprised of cartilage in the front and bone toward the back of the nose, states the American Rhinologic Society. The bony part of the septum is made up of the perpendicular plate of the ethmoid bone, vomer bone and maxilla bone.

Because the nasal septum is often off center or crooked, this can result in a narrowing of one or both sides of the nasal cavity, according to the American Rhinologic Society. The nasal septum acts to separate the right and left nasal cavities, or nostrils, which connect at the back of the septum via the opening of the nasopharynx.