depressor septi nasi muscle

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de·pres·sor sep·ti na·si mus·cle

(dĕ-prĕs'ōr sep'tī nā'sī mŭs'ĕl)
Origin, facial muscle of nose; a vertical fasciculus from maxilla superior to central incisor passing upward along median line of upper lip to insert into mobile part of nasal septum; action, works with alar (dilator) part of nasalis muscle to widen the nares during deep inspiration; depresses septum; nerve supply, buccal branch of facial.
Synonym(s): musculus depressor septi [TA] , depressor muscle of septum.
References in periodicals archive ?
infraorbital (zygomaticus major and minor, the levator labii superioris alaeque nasi, the superior part of the orbicularis oris, and possibly the compressor naris, the depressor septi nasi, the orbicularis oculi, the frontalis, the corrugator supercilii, and the procerus)