Page 185 - My FlipBook

AREOLAR TISSUE, TENDONS, AND MVSCLES. 195 ;
numerary elevators of the pharynx are frequently present ; they arise
from the base of the skull in juxtaposition to the styloid process, or
from the petrous process of the temporal bone (anterior to the carotid
foramen) or the vaginal process of the same bone. These muscles are
named the petro-pharyngeus, which arises from the petrous portion
spheno-pharyngeus, from the spine of the sphenoid ; pterygo-pharyngeus
externus, from the hamular process ; occipito-pharyngeus, from the bas-
ilar process ; pharyngo-mastoideus, from the mastoid process : the last
named is very rare. The azygos pharyngis is frequently classed in
Fig. 97.

o
fi h a 3
Muscles of the Soft Palate, the Pharynx being laid open from behind.
this group : a description of it is given with that of the superior con-
strictor of the pharynx.
Nerves.—This muscle receives branches from the glosso-pharyngeal
nerve.
Action.—To assist in elevating the pharynx.
The Palato-phai-yngeus muscle (Fig. 97) is long and narrow, wider
at the extremities than in the middle, and extends from the soft pal-
ate to the pharynx ; it arises in the soft palate by an anterior and a pos-