EXPLANATION OF PLATE III 



A GENERAL VIEW OP THE LYMPHATIC OR ABSORBENT SYSTEM 



OP VESSELS. 



e, A portion of the small intestine from which lacteals or chyle- 

 conveying vessels, d, proceed, their origin within the villi may be 

 seen magnified in fig. 51; /, the duct called thoracic, into which the 

 lacteals open. This duct passes up the back of the chest, and opens 

 into the great veins at g, on the left side of the neck: here the chyle 

 mingles with Hie venous blood. In the right upper, and lower limbs 

 the superficial lymphatic vessels I III, which lie beneath the skin, 

 are represented. In the left upper and lower limbs the deep lym- 

 phatic vessels which accompany the deep blood-vessels are shown. 

 The lymphatic vessels of the lower limbs join the thoracic duct at the 

 spot where the lacteals open into it: those from the left upper limb 

 and from the left side of the head and neck open into that duct at 

 the root of the neck. The lymphatics from the right upper limb and 

 from the right side of the head and neck join the great veins at n. 

 m m, enlargements called lymphatic glands, situated in the course of 

 the lymphatic vessels. These vessels convey a fluid called tymph^ 

 which mingles with the blood in the great veins. A fuller account of 

 the lymphatic vessels in general, as distinguished from that section of 

 them known as the lacteals, will be found on p. 188. 



