Changes

'''Duplex Uteri'''  

'''Duplex Uteri'''  

* rabbits and marsupials

*Completely separate uterine horns each with their own cervical canal. Duplex uteri are seen in rabbits and marsupials.

'''Bicornuate Uteri'''  

'''Bicornuate Uteri'''  

*(previously Bipartite Uteri)

*(Previously Bipartite Uteri) Bicornuate uteri have a relatively small uterine body and two uterine horns of varying development.

*A high degree of paramesonephric duct fusion leads to a uterine body and short poorly developed uterine horns as seen in the Mare.

*A releatively large uterine body and short, poorly developed uterine horns, as seen in the Mare, are due to a high degree of paramesonephric duct fusion.

*An intermediate degree of fusion leads to moderately developed uterine horns as in the Cow, Sheep and Goat.  

*Moderately developed uterine horns as in the Cow, Sheep and Goat arise due to an intermediate degree of fusion.  

*A low degree of fusion of the paramesonephric ducts leads to long uterine horns and a small uterine body as seen in the sow, bich and queen.  

*Long uterine horns and a small uterine body as seen in the sow, bich and queen arise due to a low degree of fusion of the paramesonephric ducts.  

*This varying degree of paramesonephric duct fusion reflects the species differences in litter sizes. as either monotocous or polytocous animals

*This varying degree of paramesonephric duct fusion reflects the species differences in litter sizes, Monotocous species having short horns and polytocous animals having much longer uterine horns.

'''Simplex Uteri'''

'''Simplex Uteri'''

*complete fusion of the paramesonephric ducts forming a single uterine body with no uterine horns. This is seen in primates and especially humans.

*Complete fusion of the paramesonephric ducts forming a single uterine body with no uterine horns. This is seen in primates and especially humans.

==Structure==

==Structure==