168 



ADVANCED PHYSIOLOGY 



which, as we have already noticed, receives the lymph from the 

 intestine and consequently the fat absorbed into the lacteals. 



It is also joined by 

 subordinate vessels 



from the left side of 

 Lymph 



fesse/sfrm 

 Head 



Jugular 



Vein 



the head and left arm, 

 and then empties into 

 the left sub-clavian 

 vein in the shoulder 

 region; Fig. 94. The 

 lymph from the right 

 arm and right side of 

 the head flow together 

 into a smaller vessel 

 which empties into 

 the right sub-clavian 

 vein. Thus the lymph, 

 which originally came 

 from the blood, after 

 flowing through the 

 system of lymph 

 tubes, gets back again 

 into the blood, pro- 

 ducing a continuous 

 circulation of lymph 

 from the blood to the 

 living cells and back 

 again to the blood. 

 Lymph transfers the 

 nutriment directly to the living cells and then brings back to 

 the blood the excreted products which are then carried to certain 

 organs for elimination. 



DUCTLESS GLANDS 



.Thoracic 

 duct 



Lymph 

 qlands 



FIG. 94. SHOWING THE COURSE OF THE 



THORACIC DUCT 



Its entrance into the vein in the neck and also the 

 right lymphatic duct. 



In different parts of the body are a number of organs, some- 



