1 66 



ELEMENTS OF MAMMALIAN ANATOMY. 



The ureter is a small tube leading from the pelvis of 

 each kidney along the dorsal as- 

 pect of the abdominal cavity to 

 the dorsal and caudal end of the 

 bladder. 



The bladder is the sac for re- 

 taining the urine. It lies ventrad 



FIG. 87. MEDIAN LONGITUDINAL SECTION 

 OF A KIDNEY. 



cor, Cortical substance; hi, hilus ; med, 

 medullary portion; p, papilla; pi, 

 pelvis; u, pyramids; ur, ureter. 



to the rectum, a little to the right 

 of the median line, being held in 

 place by the ligamentum suspen- 

 sorium, a fold of the peritoneum 

 attached to the mid-ventral line. 

 It is also attached by lateral liga- 

 ments. On its dorsocaudal aspect 

 near where the ureters empty, the 

 urethra originates and passes along 

 the ventral surface of the vagina 

 to the vestibule, within which it 

 opens (Fig. 86). In the male it 



FIG. 88. DIAGRAM OF THE 

 STRUCTURE OF THE KID- 

 NEY BETWEEN THE LlNES 



a AND c IN FIG. 87. 



ar, Arteries leading to the 

 Malpighian bodies, only 

 one capsule being shown; 

 b, veins leading from the 

 capillary network about a 

 convoluted tubule as at 

 n ; ex, line marking the 

 boundary between the cor- 

 tical and medullary por- 

 tions of the kidney; cp, 

 capsule of Bowman en- 

 veloping the bunch of 

 capillaries; d, distal con- 

 voluted tubule ; hi, Henle's 

 loop ; n, capillary network 

 about the tubule; t, the 

 bunch of capillaries or 

 Malpighian tuft; ur, por- 

 tions of uriniferous tubu- 

 les emptying into the col- 

 lecting tubule c ; xc, prox- 

 imal convoluted tubule. 



passes directly from the bladder 



along the ventral surface of the rectum to the root of the 



penis at the pubic symphysis, and thence on through the 



