75 
right kidney is slightly larger than the corresponding lobe of the left. 
The anterior lobes are in no way connected with each other. The 
left posterior lobe has a small imperfectly separated lobe on its antero- 
dorsal aspect. The fibrous capsule did not form a common sheet 
about the anterior and posterior lobes of each side, but each anterior 
lobe is enclosed separately and the two fused posterior lobes are 
surrounded by a common capsule. 
The two ureters emerge from the posterior lobes. They le in a 
furrow marking the line of fusion between the two lobes and passing 
posteriorly enter the 
bladder in the normal Aan = 
manner. By pushing 2. 
aside the lobes of the N 
kidney each ureter y- L = DOES, 
may be seen to enter E 2 
the hilus, which is re- Vv.ren.dex - 
presented by a well- 
marked depression on 
the median antero- BS 
dorsal aspect of the 
posterior lobe, and 
there to expand ab- 
ruptly into a renal 
pelvis which is divided Writs e ae A 
into a wide channel 
for the posterior lobe, 
and a narrow one that 
appears as a branch of 
the wider and enters 
the anterior lobe ina 
flattened area on its 
posterior surface. 
The Aa. renales, 
one on each side, arise 
from the aorta at the normal level and pass posteriorly and slightly 
laterad over the dorsal surface of the anterior lobes of the kidneys, 
then dip ventrally and divide in the space between anterior and 
posterior lobes. The A. renalis dextra is the larger. It gives off 
branches to both lobes of the right side and continues toward the 


S 
Fig. 2, Case II. Horseshoe kidney in the domestic 
cat. Drawn from organs in place. x 3/4. 
