Changes

'''Myometrium'''

'''Myometrium'''

*Muscularis layer made up from thick inner circular smooth muscle layer and thin outer longitudinal muscle layer.

*Muscularis layer made up from thick inner circular smooth muscle layer and thin outer longitudinal muscle layer.

*The circular and longitudinal layers are seperated by the Stratum Vasculare, a connective tissue layer containing the bloodvessels and nerves of the uterine wall.

*The circular and longitudinal layers are seperated by the Stratum Vasculare, a connective tissue layer containing the blood vessels and nerves of the uterine wall.

'''Endometrium'''

'''Endometrium'''

*Mucosa + Submucosa layer containing endometrial glands.

*Mucosa + Submucosa layer containing endometrial glands.

*The surface of the endometrium differs between species:

*The surface of the endometrium differs between species:

**Ruminants - Numerous round button like elavations of the endometrium called Caruncles occur. These are the sites of attchment and maternal tissue contribution to the placenta. Maternal Caruncle + feotal cotyledon = A placentome.

**Ruminants - Numerous round button like elavations of the endometrium called Caruncles occur. These are the sites of attachment and maternal tissue contribution to the placenta. Maternal Caruncle + feotal cotyledon = A placentome.

**Sow and Mare - uterine folds are present.

**Sow and Mare - uterine folds are present.

*Not shed in domestic species, only shed in primates.

*Not shed in domestic species, only shed in primates.