Changes

=== Cyclic Changes in the  Uterus ===

=== Cyclic Changes in the  Uterus ===

* The endometrium shows considerable change during the oestrous cycle.

* The [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|endometrium]] shows considerable change during the oestrous cycle.

* In pro-oestrus and oestrus, endometrial glands are loosely coiled with obvious lumina and a deep epithelial lining.

* In pro-oestrus and oestrus, endometrial glands are loosely coiled with obvious lumina and a deep epithelial lining.

* During metoestrus, the glads become larger.  Lumina become smaller and the basal layer of the endometrium becomes more tortuous.

* During metoestrus, the glads become larger.  Lumina become smaller and the basal layer of the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|endometrium]] becomes more tortuous.

* As the bitch reaches anoestrus, there is a reduction in the number of glands and the amount that they coil.

* As the bitch reaches anoestrus, there is a reduction in the number of glands and the amount that they coil.

* In metoestrus (~98 days after the onset of oestrus), there is desquamation of the endometrial epithelium.

* In metoestrus (~98 days after the onset of oestrus), there is desquamation of the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|endometrial]] epithelium.

* By day 120-130, the endometrium is restored by proliferation of cells from crypts of the endometrial glands.

* By day 120-130, the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Endometrium|endometrium]] is restored by proliferation of cells from crypts of the endometrial glands.

=== Cyclic Changes in the Ovaries ===

=== Cyclic Changes in the Ovaries ===