204 THE ANATOMY OP THE HOESE. 



tendon is reflected inwards on the hamular or pulley-like process of th( 

 pterygoid bone, a synovial bursa intervening, and expands on the pos 

 terior surface of the fibrous aponeurosis of the palate. 



Action. — To tense the anterior half of the palate. 



The Levator Palati (Plate 32). This muscle is placed between th( 

 preceding and the Eustachian tube. It arises with the tensor palat 

 from the styloid process and the Eustachian tube. Eeaching the uppei 

 wall of the pharynx, it passes beneath the pterygo-pharyngeus to gaii 

 the pharyngeal surface of the palate, where it expands. 



Action. — To raise the velum towards the roof of the pharynx, anc 

 thus to shut off the communication between the pharynx and the nasa 

 chambers. 



The AzTGOS Uvulae, which in man is situated in the uvula, wai 

 named from the belief that it was a single muscle. It consists, how 

 ever, of right and left halves applied together on the middle line of thi 

 soft palate. In order to expose them, it will be necessary to removi 

 from the oral surface of the velum a portion of the palato-pharyngeui 

 muscles on each side of the middle line. The origin of the musch 

 is from the fibrous aponeurosis of the palate, and it terminates at thi 

 free edge of the curtain. 



Action. — To raise the free edge of the velum. 



The Staphylinb Aetbrt is a slender vessel arising from the interna 

 maxillary artery, above the maxiUary hiatus. It reaches the velum b; 

 passing in the staphyline groove, along with the nerve of the same nam 

 and the palatine vein. 



The Pharyngeal Abtbky (Plate 32), a branch of the subinaxillarj 

 crosses the pharynx, and gives its terminal branches to the soft palate. 



The Veins of the soft palate enter either the lingual vein or th 

 palatine vein, which lies in the staphyline groove. 



Nerves. — The staphyline nerve will be found with the artery, in th 

 groove of the same name. It comes from the superior maxillary divisioi 

 of the 5th nerve. It carries not only sensory fibres to the mucou 

 membrane of the palate, but also motor fibres, which come from the 7tl 

 nerve through the spheno-palatine ganglion, and are distributed to th 

 levator and probably also the azygos uvulae. 



The nerve to the tensor comes from the 5th, through the otic gang 

 lion. 



the pharynx, the hyoid bone, and the base op the skull. 



Directions. — Take Plate 32 as a guide, and remove the greater portio 

 of the large cornu of the hyoid bone, making the upper section with th 

 bone-forceps just below the point at which the external carotid artei 

 crosses the hinder edge of the cornu, and the lower a little above ti 

 articulation of the two cornua. Preserve the 9th nerve at the posteric 



