The role of reproductive hormones in the menstrual cycle
A Chemical messenger produced in glands and carried by the blood to specific organs in the body. is a chemical substance, produced by a An organ or tissue that makes a substance for release, such as a hormone. and carried by the blood, which alters the activity of specific target organs (and is then destroyed by the liver).
Different hormones affect different organs or cells.
The menstrual cycle and hormones
Greg Foot describes the interaction of FSH, LS, oestrogen and progesterone in the menstrual cycle
The Recurring series of events in the human female reproductive system. is a recurring process that takes around 28 days. During the process, the lining of the Also known as a womb. This is where the fertilised egg (ovum) develops. is prepared for pregnancy. If implantation of the fertilised egg into the uterus lining does not happen, the lining is then shed. This is known as Also called a 'period'. The loss of blood and tissue from the lining of the uterus through the vagina during the menstrual cycle..
Several hormones control this cycle - for example, they are involved in controlling the release of an egg each month from an ovary, and changing the thickness of the uterus lining.