502 



LYMPHATICS. 



and posterior auricular lymphatic glands, and from thence join the cervical 

 glands. 



The superficial lymphatics of the face are more numerous than those of the 

 head, and commence over its entire surface. Those from the frontal region 

 accompany the frontal vessels; they then pass obliquely across the face, run- 

 ning with the facial vein, pass through the buccal glands on the surface of the 

 Buccinator muscle, and join the submaxillary lymphatic glands. The latter 

 receive the lymphatic vessels from the lips, and are often found enlarged in 

 cases of malignant disease of those parts. 



Fig. 315. The Superficial Lymphatics and Glands of the Head, Face, and Neck. 



The deep lymphatics of the face are derived from the pituitary membrane of 

 the nose, the mucous membrane of the mouth and pharynx, and the contents 

 of the temporal and orbital fossge ; they accompany the branches of the internal 

 maxillary artery, and terminate in the deep parotid and cervical lymphatic 

 glands. 



The deep lymphatics of the cranium consist of two sets, the meningeal and cere- 

 bral. The meningeal lymphatics accompany the meningeal vessels, escape 

 through foramina at the base of the skull, and join the deep cervical lymphatic 

 glands. The cerebral lymphatics are described by Fohmann as being situated 

 between the arachnoid and pia mater, as well as in the choroid plexuses of the 

 lateral ventricles ; they accompany the trunks of the carotid and vertebral arte- 

 ries, and probably pass through foramina at the base of the skull, to terminate 



