RAT, A REPRESENTATIVE MAMMAL 



141 



female it is strictly excretory and its aperture is near the clitoris. 

 In passing from the blood to the exterior, urine would follow about 

 the following course: glomerulus, Bowman's capsule, uriniferous 

 tubule, collecting tubule, papilla, renal pelvis, ureter, urinary blad- 

 der, urethra to the external orifice. The urine which is excreted 



uTeT'ine 

 uTerus 



uTeteT 



bladdcT" 



uTethra--' 



vaaina--- 



TecTum- 



anus— - 



diabhiagm 

 infeTioT vena cava 

 su[DTaTena! 



kidneu 



ureteT 



ovaTLj with follicles; 

 oviduct 



ovaiian aiteTu- 

 TecTum 



Fig. 44.— Female urinogenital system of the rat, ventral view. (From Greene. 

 ^natomy of the Rat, Transactions of the American Philosophical Society, New 

 Series, Vol. XXVII, 1935.) 



