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==Introduction==
==Introduction==
* Single fold
* Single fold
* Smooth surface
* Smooth surface
==Histology==
==Histology==
*Uterine artery off the Internal Iliac artery (External Iliac artery in the Mare).
*Uterine artery off the Internal Iliac artery (External Iliac artery in the Mare).
==Function==
* Provides a physical barrier to the uterus therefore preventing abortion due to infection by isolating the foetus from the external environment, closure is via the mucosal folds.
* Cervical mucosa produces a mucous secretion which forms a mucous plug that helps close the cervical canal. This is easily expelled during [[Oestrus Behaviour - Anatomy & Physiology|oestrus]] and parturition.
* Barrier to sperm transport in the ewe, cow, bitch and queen, but not in the sow and mare.
* Assists with the storage and survival of sperm by admitting sperm to the genital tract at a time when [[Fertilisation - Anatomy & Physiology|fertilisation]] is possible (around [[Ovulation - Anatomy & Physiology|ovulation]]).
* Mucus production for lubrication and to prevent microorganisms from entering the [[Uterus - Anatomy & Physiology|uterus]].
* Remodels itself at the end of gestation to allow birth and to stimulate the development of maternal behaviour.
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|powerpoints = [[Female Reproductive Tract Histology resource|Histology of the female reproductive tract]]
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[[Category:Female Reproduction]]
[[Category:Female Reproduction]]