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Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 22:50, 30 November 2010
, 22:50, 30 November 2010Text replace - "[[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology" to "[[Cervix - Anatomy & Physiology"
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* The onset and end of oestrus are the only stages of the oetrous cycle that can be accurately measured. They are therefore used to determine cycle length.
* The onset and end of oestrus are the only stages of the oetrous cycle that can be accurately measured. They are therefore used to determine cycle length.
* Female seeks out the male and 'stands' to be mounted.
* Female seeks out the male and 'stands' to be mounted.
−* [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Histology|Uterine]], [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology#Histology|cervical]] and [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|vaginal glands]] secrete increased amounts of mucus.
+* [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Histology|Uterine]], [[Cervix - Anatomy & Physiology#Histology|cervical]] and [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|vaginal glands]] secrete increased amounts of mucus.
* Vaginal epithelium and [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Endometrium|uterine endometrium]] becomes hyperaemic and congested.
* Vaginal epithelium and [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Endometrium|uterine endometrium]] becomes hyperaemic and congested.
−* [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology|Cervix]] is relaxed
+* [[Cervix - Anatomy & Physiology|Cervix]] is relaxed
* [[The_Ovary_-_Ovulation_- Anatomy & Physiology|Ovulation]] occurs during this phase in all domestic species except the cow.
* [[The_Ovary_-_Ovulation_- Anatomy & Physiology|Ovulation]] occurs during this phase in all domestic species except the cow.
** The cow [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulates]] ~12 hours after the end of oestrus.
** The cow [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulates]] ~12 hours after the end of oestrus.
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* Granulosa cells of the [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulated]] [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicles]] give rise to lutein cells, which are responsible for the [[Corpus Luteum Formation - Anatomy & Physiology|formation of the corpus luteum]] (luteinisation).
* Granulosa cells of the [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulated]] [[The_Ovary_-_Follicles_- Anatomy & 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 & 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 & 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 & Physiology#Histology|uterine]], [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology#Histology|cervical]] and [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|vaginal glands]].
+* Reduction in secretion from [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology#Histology|uterine]], [[Cervix - Anatomy & Physiology#Histology|cervical]] and [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|vaginal glands]].
=== Dioestrus ===
=== Dioestrus ===
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* High progesterone levels prompt the uterus to prepare a suitable environment for development of the embryo, and eventual [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Implantation- Anatomy & Physiology|attachment of the conceptus to the endometrium]] (implantation).
* High progesterone levels prompt the uterus to prepare a suitable environment for development of the embryo, and eventual [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Implantation- Anatomy & Physiology|attachment of the conceptus to the endometrium]] (implantation).
* Uterine glands undergo hyperplasia and hypertrophy.
* Uterine glands undergo hyperplasia and hypertrophy.
−* [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology|Cervix]] becomes constricted
+* [[Cervix - Anatomy & Physiology|Cervix]] becomes constricted
* Secretions of the tract are scant and sticky.
* Secretions of the tract are scant and sticky.
* [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|Vaginal mucosa]] becomes pale.
* [[Vagina and Vestibule - Anatomy & Physiology#Vagina_2|Vaginal mucosa]] becomes pale.
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* Follicular development is minimal and corpora lutea have regressed and are non-functional.
* Follicular development is minimal and corpora lutea have regressed and are non-functional.
* Secretions are scanty
* Secretions are scanty
−* [[Female_Reproductive_Tract_-The_Cervix_- Anatomy & Physiology|Cervix]] is constricted
+* [[Cervix - Anatomy & Physiology|Cervix]] is constricted
* Vaginal Mucosa is pale
* Vaginal Mucosa is pale