372 



ARTERIES OF THE HEAD AND XECK. 



gives branches upwards, to the lachr;y^nal sac and inner ang-le of the orbit, anas- 

 tomosing' with the nasal branches of the ophthalmic and facial arteries, and 

 sends other branches downwards, beneath the levator labii superioris. which join 

 the ramifications of the transverse facial, buccal, and superior coronary arteries. 

 ((•) The descending ox s}qwrwr imlat'me artery descends perpendicularly through,. 



Fi!^. 252. 



Fi.c 



-Deep View of the Lingual and Pharyngeal Arteries (from R. Quain). 



The lower jaw lias been removed, and the tongue drawn forwards between the teeth ; 

 the external iiterygoid muscle has been removed, and the tsmporal muscle has been turned 

 up from witliiu the zygoma ; <t, the root of tlie zygoma, above tlie glenoid cavity ; 

 h, placed on the lobe of the ear, points by a line to the .styloid process, from which the- 

 stylo-glossus and .stylo-pharyngeus are seen passing downwards and forwards, and the 

 stylo-hyoid detached from the hyoid bone is thrown backwards with the digastric muscle ; 

 c, transverse i:>rocess of the atlas ; rf, upper surface of the tongue ; r, .sawn surface of 

 the symphysis of the lower jaw ; /, the angle of the hyoid bone ; 1, left common carotid 

 artery ; 2, internal carotid artery ; 3, external carotid artery ; 3', placed on the stylo- 

 ]iharyngeus muscle, points liy a line to the upper part of the external carotid artery 

 divitled where it enters the ]iarotid gland ; 4, superior thyroid artery, its lar}mgeal brancli 

 passing upon the thyrodiyoid membrane ; 5, lingual artery about to pass within the 

 hyo-glossus muscle ; 5', placed on the geniodiyo-glossus, points to the continuation of the 

 lingual artery as the ranine ; 6, the trunk of the facial arteiy cut short ; 6', its tonsilar 

 and pharyngeal branches ; 7, occipital artery cut short ; 8, ascending phiiryngeal artery ; 

 8', its upper part turning down upon the pharynx ; 9, internal maxillary artery as it 

 passes into the siihcno-maxillary fossa, and gives the posterior dental and the infra- 

 orbital arteries ; '.»', middle meningeal artery ; 10, placed on the deep surface of the 

 temporal muscle, which is turned up and shows some cut branches of the deep temporal 

 arteries. 



