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 

 gangHon. 



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 PALAII). 



Origin. — Styloid process of temporal. 



Insertion. — Winds around pterygoid trochlea, changes its direc- 

 tion and spreads out into soft palate. 

 Action. — Tensor of soft palate. 

 Nerve. — Posterior palatine. 



PERI-STAPHYLEUS INTERNUS (LEVATOR PALATi). 



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. 



Insertio7i — 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. 



