152 ELEMENTS OF MAMMALIAN ANATOMY. 
wall, and the left forelimb. The thoracic 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 three main 
trunks. In fact, the vessels bring- 
ing the lymph to the glands may 
be said to terminate there. They 
are called afferent lymphatics. 
The lymph moves free through 
the tissue of the gland, and on 
the opposite side is taken up by 
the efferent lymphatics. 
The right and left tracheal 
trunks lie on their respective sides 
of the trachea and empty into 
the external jugular vein just be- 
Fic. 80. VENTRAL ASPECT OF CHIEF 
LymMpuHaTiIc VESSELS OF THE CAT. 
a, Axillary gland; as, pancreas Aselli; 
an, superficial lymphatics from the 
head; 0b, bronchial glands receiving 
lymph from lungs; c, lymphatic trunk; 
cr, cervical glands; cv, laryngeal 
glands; d, vessel from diaphragm; ej, 
external jugular vein; im, inguinal 
glands; il, iliac glands; ju, junction of 
thoracic duct with tracheal trunk; J, 
lumbar glands; li, large intestine; lv, 
lymph-vessel from liver; m, lacteal 
vessel and glands of mesentery; 1, 
superficial lymphatics from limb; 0, 
deep lymph-vessels from limb; on, 
lymphatics from thoracic wall; ol, ves- 
sel from abdominal wall; oc, vessels 
from limb; rec, receptaculum chyli; s, 
subclavian vein; ¢, lymphatics from 
skin of leg; tr, tl, tracheal trunks; va, 
lymph trunk from pancreas Aselli to 
thoracic duct; v, superior vena cava; 
1 and 2, submaxillary lymph glands. 
