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>