342 



COLLEGE ZOOLOGY 



Faf body 



Posterior vena cava 

 Vasa efferentia 



Kidney 



Urinary duct 



Large 

 intestine 



-Testis 



Adrenal gland 

 — Renal vein 



— Bladder 



Seminal vesicle 



Cloaca 



Cloacal 

 opening 



Figure 224. Urogenital system of the male frog in ventral view. The seminal vesicle is poorly 

 developed in the leopard frog. 



the seminal vesicles, Cowper's glands, and 

 the prostate gland; these are ultimately 

 added to the sperms and constitute the 

 seminal fluid (semen). The semen flows 



Urinary Sperm ducf 

 Ureter 



through the ejaculatory ducts into the 

 urethra and thence out of the body through 

 the penis. 



In the female, there are two ovaries 



terus 



Oviduct 



Urinary 1 \ 

 bladder— 1— A 



Seminal 

 vesicle 



restate 



land 



yy / 11 1^ 



na 

 Urethra 



Clitoris 



Penis 



Scrotum 

 estis 

 Epididymis 



Labium majus 



Figure 225. Diagram of a median section of the human male and female reproductive organs 

 showing their relation to the urinary bladder and urethra. 



