Nasal septum

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Nasal septum
Bones and cartilages of septum of nose. Right side.
Latin septum nasi
Gray's subject #223 993
Artery anterior ethmoidal
posterior ethmoidal
greater palatine
branch of superior labial[1]
Nerve anterior ethmoidal
MeSH Nasal+septum
Dorlands/Elsevier s_08/12730490

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The nasal septum separates the left and right airways in the nose, dividing the two nostrils.

It is depressed by the Depressor septi nasi muscle.


The fleshy external end of the nasal septum is sometimes also called columella.

The nasal septum is composed of three structures:

Clinical significance

The nasal septum can depart from the centreline of the nose; this condition is known as a deviated septum. Trauma, excessive nose-picking and cocaine usage can cause septum perforations, or holes developing in the septum.

An operation to the nasal septum is known as a septoplasty.

Additional images


External links

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