* During pro-oestrous and oestrus there is [[Female_Reproductive_Tract_-The_Ovary_-_Anatomy_%26_Physiology#Folliculogenesis|follicular growth]] with no functional [[The_Ovary_-_Corpus_Luteum_-_Anatomy_%26_Physiology|corpora lutea]] present on the [[Female_Reproductive_Tract_-The_Ovary_-_Anatomy_%26_Physiology|ovary]] (aka follicular phase). | * During pro-oestrous and oestrus there is [[Female_Reproductive_Tract_-The_Ovary_-_Anatomy_%26_Physiology#Folliculogenesis|follicular growth]] with no functional [[The_Ovary_-_Corpus_Luteum_-_Anatomy_%26_Physiology|corpora lutea]] present on the [[Female_Reproductive_Tract_-The_Ovary_-_Anatomy_%26_Physiology|ovary]] (aka follicular phase). |