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ELEMENTS OF MAMMALIAN ANATOMY. 



head, and right side of the thoracic wall is received by 

 the right tracheal trunk. The left tracheal trunk re- 

 ceives the lymph from the left side of the head, neck 

 and thoracic wall, and the left forelimb. The thoracic 









V ' ' ' l_.'- 



1 



FIG. 79. PHOTOGRAPH OP LYMPHATIC CAPILLARIES INJECTED WITH 

 BERLIN BLUE. They lie immediately beneath the skin on the outer 

 aspect of the ear. 



a, Point of injection; the black area is Berlin blue lying in the connec- 

 tive-tissue spaces from which the capillaries arise; n, injection escaped 

 from ruptured vessel. 



duct receives the lymph from the lungs, heart, all the 

 abdominal viscera, and muscles, and the hind-limbs. 

 With but few exceptions, all the main lymphatic vessels 

 pass through lymphatic glands before reaching one of the 



