56 EQUINE ANATOMY. 



PALATO-PHARYNGEUS. 



Origin. From soft palate. 



Insertion. Side of pharynx and superior border of thyroid 

 cartilage. 



Action. Makes tense and elevates free border of palate. 



Nerve. Superior maxillary division of fifth and Meckel's 

 ganglion. 



PALATO-STAPHYLEUS. 



Origin. Uvular aponeurosis with opposite. 

 Insertion. Into free border of soft palate. 

 Action. Pulls palate upward and forward. 

 Nerve. Posterior palatine. 



PERI-STAPHYLEUS EXTERNUS (TENSOR PALATl) 



Origin. Styloid process of temporal. 



Insertion. Winds around pterygoid trochlea, changes its 

 direction and spreads out into soft palate. 

 Action. Tensor of soft palate. 

 Nerve. Posterior palatine. 



PERI-STAPHYLEUS INTERNUS (LEVATOR PALATl). 



Origin. With preceding. 



Insertion. Into palato-pharyngeus and soft palate. 



Action. Elevator of soft palate. 



Nerve. Posterior palatine. 



PHARYNX. 



PALATO-PHARYNGEUS. See above. 



PTERYGO-PHARYNGEUS (SUPERIOR CONSTRICTOR). 



Origin. Pterygoid process. 



Insertion. Into median raphe', with opposite, and hyoid and 

 thyroid cartilage. 



Action. Constricts pharynx and raises larynx. 



HYO-PHARYNGEUS (FIRST MIDDLE CONSTRICTOR). 



Origin. Cornua of hyoid. 

 Insertion. Median raphe. 



