Depressor septi nasi muscle

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Depressor septi nasi
Musculusdepressorseptinasi.PNG
Muscles of the head, face, and neck.
Details
Latin musculus depressor septi nasi
incisive fossa of the maxilla
nasal septum and back part of the alar part of nasalis muscle
Buccal branch of the facial nerve
Actions Depression of nasal septum
Identifiers
Gray's p.382
Dorlands
/Elsevier
m_22/12548771
TA A04.1.03.012
FMA FMA:46777
Anatomical terms of muscle

The depressor septi (Depressor alœ nasi) arises from the incisive fossa of the maxilla.

Its fibers ascend to be inserted into the nasal septum and back part of the alar part of nasalis muscle.

It lies between the mucous membrane and muscular structure of the lip.

Action[edit]

The depressor septi is a direct antagonist of the other muscles of the nose, drawing the ala of the nose downward, and thereby constricting the aperture of the nares.

Works like the alar part of the nasalis muscle.

Additional images[edit]

External links[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.