ELEMENTS OF MAMMALIAN ANATOMY. 



into the collecting tube which empties into the pelvis at 

 the papilla. In a prepared micro- 

 scopic section of the kidney, 

 these Malpighian bodies and 

 uriniferous tubules may be seen 

 with a microscope magnifying 

 about 200 diameters. 



The ureter is a small tube lead- 

 ing from the pelvis of each kid- 

 ney along the dorsal aspect of the 



FIG. 84. MEDIAN LONGITUDINAL SECTION 

 OF A KIDNEY. 



cor, Cortical substance ; hi, hilus ; med, me- 

 dullary portion; p, papilla; pi, pelvis; 

 u, pyramids; ur, ureter. 



abdominal cavity to the dorsal 

 and caudal end of the bladder. 

 The bladder, or urocyst, is the 

 sac for retaining the urine. It 

 lies ventrad to the rectum, a little 

 to the right of the median line, 

 being held in place by the liga- 

 mentum suspensorium, a fold of 

 the peritoneum attached to the 

 mid-ventral line. It is also at- 

 tached by lateral ligaments. On 



FIG. 85. DIAGRAM OF THE 

 STRUCTURE OF THE KID- 

 NEY BETWEEN THE LINES 

 a AND c IN FIG. 84. 



ar, Arteries leading to the 

 Malpighian capsules, 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, cap- 

 sule of Bowman enveloping 

 the bunch of capillaries ; d, 

 distal convoluted tubule; 

 hi, Henle's loop; n, capil- 

 lary network about the 

 tubule; t, the bunch of 

 capillaries or Malpighian 

 tuft; ur, portions of urin- 

 iferous tubules emptying 

 into the collecting tubule 

 c; xc, proximal convoluted 

 tubule. 



its dorsocauclal aspect, 



