Ostium 



Uterus 



Oviduct 



Cloaca 



Paired- 

 vagina 



A- Monotreme 



B. Marsupial 

 (Opossum) 



Uterus 



Vagina 



C. Rodent 

 DUPLEX UTERUS 



Vagina 



D. Carnivore 

 BIPARTITE UTEEUS 



E. Artiodactyl 

 BICORNUATE UTERUS 



F. Human 

 SniPLEX UTERUS 



Fig 146. Comparative Anatomy of the Oviducts and Uterus. Observe the 

 loss of the cloaca and the fusion of the oviducts to form a vagma and 



uterus. 



