petropharyngeus

mus·cu·lus pet·ro·pha·ryn·ge·us

an occasional accessory levator muscle of the pharynx, arising from the undersurface of the petrous portion of the temporal bone and inserting into the pharynx.
Farlex Partner Medical Dictionary © Farlex 2012

petropharyngeus

(pĕt″rō-făr-rĭn′jē-ŭs) [″ + Gr. pharynx, throat]
A small muscle joining the lower surface of the petrous portion of the temporal bone and the pharynx. It helps to constrict the pharynx.
Medical Dictionary, © 2009 Farlex and Partners