* If the ovum is fertilised, the corpus luteum remains fully developed and active throughout at least part of the pregnancy.
* If the ovum is fertilised, the corpus luteum remains fully developed and active throughout at least part of the pregnancy.
* Corpora lutea produce progesterone.
* Corpora lutea produce progesterone.
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* Progesterone prepares and maintains the uterus for implantation of the fertilised ovum.
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* Progesterone prepares and maintains the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology|uterus]] for implantation of the fertilised ovum.