4 I2 PHYSIOLOGY AND MORPHOLOGY OF ANIMALS. 



This we have already seen as the trunk of the lacteals, 

 but it is also the trunk of much else. This is the largest. 

 (2) Another smaller 

 duct similarly situ- 

 ated on the right \ •; . '■>' ' . 

 side. These two 

 empty into the cir- 

 culation similarly — , ; , ,,,, , 



Fig, 290. — Lymphatics 

 of the arm : agl, axil- 

 lary glands. 



Fig. 291. — Diagjam of the lymphatic system : rck, 

 receptacle of chyle ; t/id, thoracic duct; th'd', 

 right thoracic duct. The arrows show the 

 course of the blood in the jugular and sub- 

 clavian veins. 



the one, as already explained, into the angle of junction 

 of the left subclavian and left jugular veins, the other at 



