Nasal septum

The nasal septum (Latin: septum nasi) separates the left and right airways of the nasal cavity, dividing the two nostrils.

Nasal septum
Bones and cartilages of the septum of the nose. Right side.
MRI image showing nasal septum
Details
ArteryAnterior ethmoidal
posterior ethmoidal
sphenopalatine
greater palatine
branch of superior labial
NerveAnterior ethmoidal
nasopalatine nerves Medial posterosuperior nasal branches of pterygopalatine ganglion
LymphAnterior half to submandibular nodes Posterior half to retropharyngeal and deep cervical lymph nodes
Identifiers
Latinseptum nasi
MeSHD009300
TA98A06.1.02.004
TA23137
FMA54375
Anatomical terminology

It is depressed by the depressor septi nasi muscle.

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