316 ZOOTOMV. 



parallel and internal to the corresponding arteries along 



the dorsal wall of the pelvis. 



XXVII. Carefully dissect away the peritoneum from the 

 kidneys, ureters, and genital organs, already noticed, 

 as well as the fat which usually obscures them. 

 Make out : 



261. The kidneys, compact red bodies of characteristic 

 shape, lying one on either side of the lumbar region, the 

 right considerably in front of the left. Each has on its 

 inner edge a depression or hilus, and is covered by 

 peritoneum on its ventral side only. 



262. The ureter (Fig. 62, A and B nr) a long white tube 

 springing from the hilus, about one-eighth of an inch in 

 diameter in its upper part, but rapidly getting narrower : 

 the two ureters pass somewhat inwards towards the middle 

 line, and then backwards almost parallel with one another, 

 and enter 



263. The bladder (bl), a pyriform sac, which may vary 

 greatly in size and appearance, according to its state of 

 distension ; when full, it projects some distance into the 

 abdominal cavity, and its walls appear very thin and show 

 the bright yellow urine through them ; when empty it hardly 

 appears above the pubes, and its walls appear thick and 

 opaque : it may be inflated from the urethra ( 153). The 

 ureters enter it about half way (in the collapsed condition) 

 between its broad anterior end, or fundus, and its narrow 

 neck. 



264. The adrenals, or suprarenal bodies, small, 

 yellowish-white bodies, of which the right is close to the 

 corresponding kidney, while the left lies in the anterior angle 

 between the aorta and renal artery. 



In the Male. 



265. The penis (A, c.c, c.s, g.p), projecting backwards 



