288 CLINICAL APPLIED ANATOMY. 



the pinna of the ear, receive lymph from the auricle, and the 

 posterior part of the parietal region. 



Some of the submandibular placed near the middle line are 

 called sub-mental and receive lymph from the lower lip, the chin, 

 and the floor of the mouth. The lymphatic glands placed in the 

 region of submandibular salivary gland are concerned with the 

 tongue, cheek, floor of the mouth and the mandible. 



The deep cervical glands placed along the carotid sheath 

 derive lymph from the tongue, pharynx, tonsils, larynx, trachea 

 and oesophagus. 



The retro-pharyngeal, present in children, are atrophic in 

 the adult. They drain lymph from the cervical portion of the 

 vertebral column, and the posterior aspect of the pharynx 

 proper. 



The supra-clavicular glands in the lower part of the posterior 

 triangle of the neck derive secondarily, but sometimes primarily, 

 lymph from the anterior thoracic wall and the mammary gland. 

 Those on the left side may be involved in secondary deposit incases 

 of malignant disease of the abdomen and thorax through their 

 connexion with the thoracic duct. 



