352 LYMPHATICS OF THE VISCERA. 



municate above with the deep cervical glands, on each side with 

 the intercostal, and below with the abdominal glands. 



The Deep lymphatic vessels of the thorax are the intercostal, in- 

 ternal mammary, and diaphragmatic. 



The Intercostal lymphatic vessels follow the course of the arteries 

 of the same name ; and reaching the vertebral column curve down- 

 wards, to terminate in the thoracic duct. 



The Internal mammary lymphatics commence in the parietes of 

 the abdomen, communicating with the epigastric lymphatics. They 

 ascend by the side of the internal mammary vessels, being joined in 

 their course by the anterior intercostals, and terminate on the right 

 side in the tributaries of the ductus lymphaticus dexter; and on the 

 left side in the thoracic duct. The diaphragmatic lymphatics pur- 

 sue the direction of their corresponding veins, and terminate, some 

 in front in the internal mammary vessels, and some behind, in the 

 posterior mediastinal lymphatics. 



The Deep lymphatic glands of the abdomen are the lumbar glands; 

 they are very numerous, and are seated around the common iliac 

 vessels, the aorta and vena cava. 



The deep lymphatic glands of the pelvis are the external iliac, 

 internal iliac, and sacral. 



The External iliac are placed around the external iliac vessels, 

 being in continuation by one extremity with the femoral lymphatics, 

 and by the other with the lumbar glands. 



The Internal iliac glands are situated in the course of the internal 

 iliac vessels, and the sacral glands are supported by the concave 

 surface of the sacrum. 



The Deep lymphatic vessels are continued upwards from the thigh, 

 beneath Poupart's ligament, and along the external iliac vessels to 

 the lumbar glands, receiving in their course the epigastric, circum- 

 flex ilii, and ilio-lumbar lymphatic vessels. Those from the parietes 

 of the pelvis, and from the gluteal, ischiatic, and obturator vessels, 

 follow the course of the internal iliac arteries, and unite with the 

 lumbar lymphatics. And the lumbar lymphatic vessels, after re- 

 ceiving all the lymphatics from the lower extremities, pelvis, and 

 loins, terminate by several large trunks in the receptaculum chyli. 



LYMPHATICS OF THE VISCERA. 



The Lymphatic vessels of the lungs are distributed over every 

 part of the surface, and through the texture of- these organs ; they 

 converge to the numerous glands situated around the bifurcation of 

 the trachea and roots of the lungs the bronchial glands. Some of 

 these glands of small size, may be traced in connexion with the 

 bronchial tubes for some distance into the lungs. The efferent 

 vessels from the bronchial glands unite with the tracheal and ceso- 

 phageal glands, and terminate principally in the thoracic duct at 

 the root of the neck, and partly in the ductus lymphaticus dexter. 

 The bronchial glands, in the adult, present a variable tint of brown, 



