564 URINARY ORGANS OF THE OX 
The lymph-vessels go to the renal lymph glands. The numerous nerves are derived 
from the sympathetic system through the solar and renal plexuses. The fibers 
form a rich interlacement, especially in the medullary substance. Ganglion cells 
are found chiefly in the medulla, but also occur in the deeper part of the cortex. 
URINARY ORGANS OF THE OX 
The kidneys are superficially divided into polygonal lobes by fissures of vari- 
able depth. The lobes vary in size, and are commonly about twenty in number. 
The fissures are filled with fat. 
The right kidney has an elongated elliptical outline, and is flattened dorso- 
ventrally. It commonly lies ventral to the last rib and the first two or three lumbar 
Lateral border 
Anterior extremity 
Ureter Renal artery 
Fie; 504.—Rieur Kipnery or Ox; VENTRAL Facer. 
Organ hardened in situ. Fat has been removed from fissures between lobes, 
Renal artery 
Fira. 505.—Prontau Section or Krpney or Ox. 
L, Lobes of cortex; P, papilla; C, calyx major; c’, calyces minores. 
transverse processes, but its extremities may be ventral to the first and fourth 
lumbar transverse processes. The dorsal surface is rounded, and is in contact 
chiefly with the sublumbar muscles. The ventral surface is less convex, and is 
related to the liver, pancreas, duodenum, and colon. The hilus is situated on the 
anterior part of this surface, near the medial border. The medial border is 
nearly straight, and lies parallel with the posterior vena cava. The lateral border 
is convex. The anterior extremity occupies the renal impression of the liver, and 
is capped by the adrenal body. 
