Changes

Reproductive [[Hormones - Anatomy & Physiology|hormones]] tend to have short half lives and act in minute quantities. They bind to specific receptors on their target organs.  

Reproductive [[Hormones - Anatomy & Physiology|hormones]] tend to have short half lives and act in minute quantities. They bind to specific receptors on their target organs.  

[[Female Reproductive Tract -Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]]

[[Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]]

|<font color=Purple>Oestrogen</font>

|<font color=Purple>Oestrogen</font>

|GnRH from the [[Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the developing ''follicles'' in the ovary to secrete this hormone.

|GnRH from the [[Hypothalamus - Anatomy & Physiology|Hypothalamus]] causes FSH secretion from the [[Pituitary Gland - Anatomy & Physiology|Pituitary Gland]] which stimulates the developing ''follicles'' in the ovary to secrete this hormone.

|Promotes development of mammary tissue and is vital for thickening of the endometrium prior to implantation. Oestrogens regulate the [[Female Reproductive Tract -Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]].

|Promotes development of mammary tissue and is vital for thickening of the endometrium prior to implantation. Oestrogens regulate the [[Oestrous Cycle - Anatomy & Physiology|Oestrus Cycle]].

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|<font color=Purple>Progesterone</font>

|<font color=Purple>Progesterone</font>

|Relaxes the cervix and pelvic ligaments in preparation for parturition.

|Relaxes the cervix and pelvic ligaments in preparation for parturition.

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|<font color=Purple>[[Pituitary_Gland_-_Anatomy_%26_Physiology#Oxytocin|Oxytocin]]<font>

|<font color=Purple>[[Pituitary_Gland_- Anatomy & Physiology#Oxytocin|Oxytocin]]<font>

|Oxytocin is mainly produced by the [[Hypothalamus - Anatomy & Physiology|Hypothalamus]] and secreted by the [[Pituitary Gland - Anatomy & Physiology|Pituitary Gland]], however in some species including primates and ruminants it is produced by the Corpus Luteum.

|Oxytocin is mainly produced by the [[Hypothalamus - Anatomy & Physiology|Hypothalamus]] and secreted by the [[Pituitary Gland - Anatomy & Physiology|Pituitary Gland]], however in some species including primates and ruminants it is produced by the Corpus Luteum.

|In addition to allowing Milk let-down and promoting uterine contractions, oxytocin works along with oestrogen to induce endometrial production of PGF-2a resulting in regression of the Corpus Luteum.

|In addition to allowing Milk let-down and promoting uterine contractions, oxytocin works along with oestrogen to induce endometrial production of PGF-2a resulting in regression of the Corpus Luteum.

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[[Category:Endocrine System - Anatomy & Physiology]][[Category:Reproductive System - Anatomy & Physiology]]

 

[[Category:Endocrine System - Anatomy & Physiology]][[Category:Female Reproduction]]