866 



HUMAN ANATOMY. 



{h) The masseteric veins (vv. massetericae) are several small veins which return the blood 

 from the masseteric and buccinator muscles, opening into the outer surface of the facial vein. 



(z ) The anterior parotid veins (vv. parotideae anierioresj consist of several small veins which 

 issue from the anterior border of the parotid gland and from the socia parotidis. They follow 

 the parotid duct, around which they form a net-work, and open into the outer surface of the 

 facial vein. 



{J ) The inferior or descending palatine vein ( v. palatina ) accompanies the ascending palatine 

 or tonsillar branch of the facial artery. It takes its origin in the tonsillar plexus and descends 

 upon the side of the pharynx to open into the facial after it has crossed the ramus of th<i mandible. 



Fig. 754. 



Temporal fascia 



Superficial 



temporal vein^ 



Middle temporal 



Occipital vein 



Internal maxillary 



vein 



Temporo- 



maxillary vein 



Posterior auricular 



vein 



Stemo-cleido- 

 mastoid 



Communication 



between facal 



and external 



jugular vein 



External jugular 



vein 



Tributary of trans-< 



verse cervical vein 



Posterior external 



jugular vein 



Trapezius 



Frontal veins 



■Supraorbital vein 

 Branch of communi- 

 cation with ophthal- 

 mic vein 

 Angular vein 



Lateral nasal vein 



Facial vein 



Deep facial vein 



Submental vein 



Superficial veins of head and neck ; external jugular lies beneath platysma muscle, 



wnich has been partly removed. 



{k) The submental vein (v. submentalis) accompanies the artery of the same name. It 

 rests upon the superficial surface of the mylo-hyoid muscle and passes backward and outward in 

 the submaxillary triangle, beneath the platysma, to open into the cervical portion of the facial. 

 It communicates with the sublingual vein by several branches which perforate the mylo-hyoid 

 muscle, and, in addition to cutaneous and muscular branches, also receives tributaries from the 

 submaxillary gland, these latter vessels, however, frequently opening directly into the facial as 

 it traverses the groove upon the gland. 



