- 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 Actions Depression of nasal septum 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.
Works like the alar part of the nasalis muscle.
External links
- depressor+septi+nasi+muscle at eMedicine Dictionary
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.List of muscles of head and neck: the head (TA A04.1, GA 4.378) Extraocular (CN III, IV, VI) oblique (inferior, superior) · rectus (superior, inferior, medial, lateral) · levator palpebrae superioris (superior tarsal)Mastication (CN V3) masseter · temporalis (sphenomandibularis) · pterygoid (lateral, medial)
fascia: Masseteric fascia · Temporal fascia · Deep portion: cementomaxillary tendon · Superficial portion: cementomandibular tendonFacial (CN VII) levator anguli oris · levator labii superioris · zygomaticus (major, minor)
orbicularis oris · risorius · buccinator
depressor anguli oris · depressor labii inferioris · mentalisPalate/fauces (CN IX, X, XI)
(except TVP=V3)veli palatini (tensor, levator) · musculus uvulae · palatopharyngeus (to pharynx) · palatoglossus (to tongue)Tongue (CN XII) extrinsic (genioglossus, hyoglossus/chondroglossus, styloglossus, and palatoglossus) · intrinsic (superior longitudinal, inferior longitudinal, transverse, vertical)Categories:- Muscle stubs
- Muscles of the head and neck
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