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Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 15:07, 29 November 2010
, 15:07, 29 November 2010no edit summary
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=Introduction=
=Introduction=
** The cow [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulates]] ~12 hours after the end of oestrus.
** The cow [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulates]] ~12 hours after the end of oestrus.
* [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|Ovulation]] is spontaneous in all domestic species except the cat, rabbit and camelids. In these species it is induced by the act of [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology|copulation]].
* [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|Ovulation]] is spontaneous in all domestic species except the cat, rabbit and camelids. In these species it is induced by the act of [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology|copulation]].
* 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 [[Corpus Luteum - Anatomy & Physiology|corpora lutea]] present on the [[Female_Reproductive_Tract_-The_Ovary_-_Anatomy_%26_Physiology|ovary]] (aka follicular phase).
* The main ovarian hormone production is Oestrogen.
* The main ovarian hormone production is Oestrogen.
* The phase after oestrus
* The phase after oestrus
* During early metoestrus, both oestrogen and progesterone levels are relatively low.
* During early metoestrus, both oestrogen and progesterone levels are relatively low.
* Granulosa cells of the [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulated]] [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicles]] give rise to lutein cells, which are responsible for the [[The_Ovary_-_Corpus_Luteum_Formation_-_Anatomy_%26_Physiology|formation of the corpus luteum]] (luteinisation).
* Granulosa cells of the [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulated]] [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicles]] give rise to lutein cells, which are responsible for the [[Corpus Luteum Formation - Anatomy & Physiology|formation of the corpus luteum]] (luteinisation).
* Progesterone secretion is detectable soon after [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]], with significant quantities produced in 2-5 days. This marks a transition from oestrogen to progesterone dominance.
* Progesterone secretion is detectable soon after [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]], with significant quantities produced in 2-5 days. This marks a transition from oestrogen to progesterone dominance.
* Reduction in secretion from [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Histology|uterine]], [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology#Histology|cervical]] and [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology#Vagina_2|vaginal glands]].
* Reduction in secretion from [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology#Histology|uterine]], [[Female_Reproductive_Tract_-The_Cervix_-_Anatomy_%26_Physiology#Histology|cervical]] and [[Female_Reproductive_Tract_-The_Vagina/Vestibule_-_Anatomy_%26_Physiology#Vagina_2|vaginal glands]].