MYOLOGY. 55 



' OCCIPITO-STYLOLD. 



Origin. Styloid process of occipital. 



Insertion. Horizontal portion of posterior border of the styloid 

 bone. 



Action. Depresses inferior extremity of hyoid. 

 Nerve. Facial. 



TRANSVERSUS HYOIDEI. 



Runs between superior extremities of styloid cornua. 

 Action. Approximates styloid cornua. 

 Nerve. Hypoglossal. 



TONGUE. 



STYLO-GLOSSUS. 



Origin. Outer surface of lower extremity of styloid bone. 

 Insertion. Side and tip of tongue. 



Action. Pulls tongue up and backward or to one side alone. 

 Nerve. Hypoglossal. 



HYO-GLOSSUS MAXIMUS. 



Origin. Side of appendix, body and great cornua of hyoid. 



Insertion. Lateral borders of tongue. 



Action. Retracts tongue and depresses its base. 



GENIO-GLOSSUS. 



Origin. Posterior surface of body of lower jaw, near symphysis. 



Insertion. Under surface of tongue. 



Action. Pulls tongue forward or depresses it. 



Nerve. Hypoglossal. 



HYO-GLOSSUS MINIMUS. 



Origin. Body of hyoid near small branch. 



Insertion. Into base of tongue. 



Action. Contracts and retracts tongue. 



PALATE. 



PALATO-GLOSSUS. 



Origin. From lateral wall of pharynx. 

 Insertion. Into side of tongue between hyo- and genio-glossi. 

 Action. Elevates tongue. 



Nerve. Superior maxillary division of fifth and Meckel's 

 ganglion. 



