Changes

* Almost all pregnancies carried in the left Uterine Horn, which is longer than the right.

* Almost all pregnancies carried in the left Uterine Horn, which is longer than the right.

* Ova shed from the right ovary must migrate down the right Uterine Horn to the Uterine Body and up the left Uterine Horn in order to [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Implantation-_Anatomy_%26_Physiology|establish pregnancy]].

* Ova shed from the right ovary must migrate down the right Uterine Horn to the Uterine Body and up the left Uterine Horn in order to [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Implantation-_Anatomy_%26_Physiology|establish pregnancy]].

* In immature females the uterus is very small and can be found entirely within the pelvic cavity, whereas in mature non-pregnant females it is located in the abdominal cavity at the level of the 5th, 6th and 7th lumbar vertebra.  

* In immature females the uterus is very small and can be found entirely within the pelvic cavity, whereas in mature non-pregnant females it is located in the abdominal cavity at the level of the 5th, 6th and 7th [[Spinal_Column_-_Anatomy_%26_Physiology#Lumbar_Vertebrae|lumbar vertebra]].  

* The endometrium of the uterine body and horns contain no caruncles and the uterine glands are simple, branched and tubular.

* The endometrium of the uterine body and horns contain no caruncles and the uterine glands are simple, branched and tubular.

* In the gravid uterus the left uterine horn, in which the fetus implants, becomes noticeably distended at around 1.5 months of pregnancy and is almost double its size by 2 months at which time the uterus hangs into the abdominal cavity.

* In the gravid uterus the left uterine horn, in which the fetus implants, becomes noticeably distended at around 1.5 months of pregnancy and is almost double its size by 2 months at which time the uterus hangs into the abdominal cavity.