500 



THE ABSORBENTS. 



cranium, descend obliquely in the course of the facial vein, and join the 

 submaxillary glands, from six to ten in number, which are placed beneath the 



Fig. 338. 



Fig. 338. PRINCIPAL LYMPHATIC VESSELS AND GLANDS OP THE HEAD AND NECK 

 ON THE RIGHT SIDE (after Bourgery in part). 



The inner half of the right clavicle and part of the sternum have been removed so as 

 to expose the arch of the aorta, and the innominate artery and veins : the posterior belly 

 of the omo-hyoid muscle is removed; and the sterno-mastoid, sterno-hyoid, and sterno- 

 thyroid muscles, and a part of the external jugular vein have been divided so as to expose 

 the deeper parts. 



a, the right innominate vein at the place where it is joined by the principal lymphatic 

 trunk ; a', the left vein ; b, arch of the aorta ; c, common carotid artery ; d, thyroid 

 gland crossed by the anterior jugular vein ; e, cut surface of the sternum ; /, outer part 

 of the clavicle ; 1, submaxillary lymphatic vessels ; 1', sublingual ; 2, temporal, facial and 

 parotid ; 3, occipital and posterior auricular ; 4, deep or descending cervical close to the 

 great vessels ; 5, transverse cervical ; 6, deep pectoral and axillary ; 7, on the vena cava 

 superior, some of the right mediastinal ; 8, on the innominate artery, some of the deeper 

 cardiac and bronchial ; to these last are seen descending some of the lymphatics from the 

 thyroid gland and lower part of the neck. 



base of the lower maxillary bone ; a few of them in their descent pass 

 through some glands situated on the buccinator muscle. The deep lym- 

 phatics of the face, derived from those of the temporal fossa and the 

 cavities of the nose, mouth, and orbit, proceed outwards in the course 

 of the internal maxillary vein ; and, having reached the angle of the jaw, 

 they enter the glands in that neighbourhood. 



