Nasal septum
The nasal septum separates the left and right airways in the nose and divides the two nostrils.
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Composition [change]
The fleshy external end of the nasal septum is sometimes also called columella.
The nasal septum is composed of three structures:
Clinical significance [change]
The nasal septum can depart from the centreline of the nose; this condition is known as a deviated septum. Injury, 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 [change]
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Horizontal section of nasal and orbital cavities.
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Left orbicularis oculi, seen from behind.
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Cartilages of the nose, seen from below.
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Coronal section of nasal cavities.
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Front of nasal part of pharynx, as seen with the laryngoscope.
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MRI image showimg nasal septum.
