Depressor septi nasi muscle
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| Depressor septi nasi | ||
|---|---|---|
| Muscles of the head, face, and neck. | ||
| Latin | musculus depressor septi nasi | |
| Gray's | subject #107 382 | |
| Origin: | incisive fossa of the maxilla | |
| Insertion: | nasal septum and back part of the alar part of nasalis muscle | |
| Artery: | ||
| Nerve: | Buccal branch of the facial nerve | |
| Action: | Depression of nasal septum | |
| Dorlands/Elsevier | m_22/12548771 | |
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
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.
External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
