200 



ELEMENTS OF MAMMALIAN ANATOMY 



neum attached to the mid-ventral line. It is also attached 

 by lateral ligaments. 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. 97). In the male it 

 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 corpus spongiosum to 



Fig. 98. — Median Longitudinal Section'of 

 A Kidney. 

 cor. Cortical substance; hi, hilus; tned, 

 medullary portion; p, papilla; pi, pelvis; n, 

 pyramids; ur, ureter. 



the point of the penis. The ureter. 



formed by mucous membrane. 



THE FEMALE REPRODUCTIVE 

 SYSTEM 



The female reproductive organs 



Fig. 99. — Diagram of the 

 Structure of the Kidney 

 between the Lines a and c 

 IN Fig. 98. 



ar. Arteries leading to the 

 renal corpuscles, only one 

 capsule being shown; h, veins 

 leading from the capillary 



bladder, and urethra consist largely network about a convoluted 



^ , . ,,..,. tubule as at n\ ex, line mark- 



of muscular tissue, the Immg bemg i^g the boundary between the 



cortical 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, capillary net- 

 work about the tubule; /, the 

 bunch of capillaries of Mal- 



are the two ovaries^ a pair of uterine pighian tuft; ur, portions of 



. , , I . renal tubules emptying into 



tubes, a uterus, and a vagina. lo ^he collecting tubule c; xc, 

 demonstrate these, the entire ventral proximal convoluted tubule. 

 abdominal wall must be removed and the pubic symphysis 

 severed with the bone-cutters. The ovaries are the small yel- 

 lowish oval bodies about one centimeter long lying just caudad of 



