THE LYMPH VESSELS OF HEAD AND NECK. 



1005 



in the submaxillary glands, but in some cases one or more vessels of this group pass to the upper 

 superficial cervical glands. 



The Lymph Vessels of the Nasal Muco-periosteum. The vessels from the anterior part of the 

 nasal muco-periosteum accompany 

 the vessels of the lower portion of 

 the external part of the nose and styioglossus 



Lymph vessels of 

 the pharyngeal part 

 of the tongue 

 Stylopharyngeus v 

 'stylo-hyoid x \ 



Lymph vessels of the side 



and dorsum of the anterior 



two-thirds of the tongue 



. Lymph vessels 



I --^ of the tip 



of the tongue 



Digastric 



Hyoglossus 



end in the submaxillary glands. 

 Those from the posterior part of 

 the muco-periosteum end partly 

 in the medial superior deep cer- 

 vical glands, and partly in the 

 lateral retro- pharyngeal glands. 



There is little definite know- 

 ledge regarding the lymph vessels 

 of the accessory sinuses of the 

 nose, but it is probable that they 

 follow the lines of the blood- 

 vessels which supply the muco- 

 periosteum of the cavities. 



The Lymph Vessels of the 

 Lips. The vessels from the skin 

 of the medial part of the lower lip 

 pass to the submental glands and, 

 occasionally, direct to the superior 

 deep cervical glands. The vessels 

 from the deeper parts of the lower 

 lip unite with those from the up- 

 per lip and end in the submaxil- 

 lary glands, but some of the super- 

 ficial vessels of the upper lip may 

 end in the superficial cervical 

 glands. 



The Lymph Vessels of the 

 Cheeks. The majority of the 

 superficial and deep lymph vessels of the cheeks pass to the submaxillary glands, but in some 

 cases they communicate directly with the superficial or with the superior deep cervical glands. 

 They may communicate also with the buccinator glands. 



The Lymph Vessels of the Gums. The vessels from the outer part of the anterior portion 



of the mandibular gum pass to the sub- 

 mental glands. Those from the posterior 

 part, together with the vessels from the 

 outer part of the gum of the maxilla, 

 terminate in the submaxillary glands. 

 The vessels of the gum of the maxilla 

 may also communicate with the buccinator 

 glands. 



The vessels from the inner part of the 

 gum of the mandible end in the sub- 

 maxillary glands ; those of the inner part 

 of the gum of the maxilla, together with 

 the vessels of the hard and the soft palate, 

 end in the medial superior deep cervical 

 glands. 



The Lymph Vessels of the Teeth. 

 It is known that lymph vessels exist in 

 connexion with the teeth of the mandible 

 well as with the mandible itself, but 



Genio-hyoid 



Submental glands 

 v Mylo-hyoid 

 Deep lymph 

 of tongue 



- Lowest medial deep cervical gland 

 Omo-hyoid 



FIG. 803. DIAGRAM OF SIDE- VIEW ORIGINS AND TERMINATIONS OF 

 THE LYMPH VESSELS OF THE TONGUE. (After Poirier, 

 modified.) 



Lymph vessels ol 

 dorsum and sides 

 of anterior two- 

 thirds of tongue 



Styioglossus- 



Hyoglossus 



Deep lymph 

 vessels of right 

 side of tongue 



FIG. 804. DIAGRAM OF LYMPH VESSELS OF ANTERIOR 



TWO-THIRDS OF TONGUE, SEEN "FROM BELOW. 



Poirier, modified.) 



as 



their terminations are not definitely estab- 

 lished. It is probable that they end in 

 the submaxillary or the superior deep 

 cervical glands. 



The lymph vessels of the teeth of the 

 maxilla pass partly into the infra - orbital 

 canal and so to the face, where they join 

 the vessels from the lateral parts of the 

 eyelids, and terminate in the anterior 

 (After aur icular and submaxillary glands. The 

 remaining vessels of the maxillary teeth 

 end in the submaxillary glands. 



The Lymph Vessels of the Tongue. The lymph vessels of the tongue form three groups 



rior, (2) middle, (3) posterior. The anterior and middle groups communicate freely with 



s another and with their fellows of the opposite side, but the posterior group have little or no 



mmunication with the middle group. (1) The anterior lymph vessels drain the tip and the 



