posterior fascicle of palatopharyngeus muscle

(redirected from velopharyngeal sphincter)

posterior fascicle of palatopharyngeus muscle

[TA]
thinner portion of the muscle of the palatopharyngeal arch, originating in the region of the midline where its fibers interdigitate with the contralateral partner, then passing posterior to the levator veli palatini muscle to join the longitudinal layer of pharyngeal musculature; acts as a sort of sphincter, reducing the caliber of the isthmus of fauces at the palatopharyngeal arch.

pos·te·ri·or fas·ci·cle of pal·a·to·pha·ryn·ge·us mus·cle

(pos-tērē-ŏr fasi-kĕl pală-tō-fă-rinjē-ŭs mŭsĕl) [TA]
Thinner portion of the muscle of the palatopharyngeal arch.
Synonym(s): palatopharyngeal sphincter.
References in periodicals archive ?
Velopharyngeal incompetence is inability to close the velopharyngeal sphincter completely; it can occur due to any structural defect of the velum or pharyngeal wall at the level of nasopahrynx or mechanical interference for closure.
Dysfunction of the velopharyngeal sphincter from obvious abnormalities of the pharyngeal wall are readily seen and diagnosed early.
Velopharyngeal sphincter physiology in deaf individuals.