## Notes It's the other half of the [[Menstruation|menstrual cycle]], before the [[Luteal Phase|luteal phase]]. The ovaries prepare several immature eggs to travel down the fallopian tubes for implantation in the uterus. 1. Pituitary gland (part of the hypothalamus) releases *follicle-stimulating hormone (FSH)*. FSH tells the ovary to prepare eggs. The ovary produces follicules. 2. A dominant follicule forms. 3. Dominant follicule releases more [[Estrogen]] in the body. The increased [[Estrogen]] thickens the uterine lining. 4. Increased *estrogen* causes *FSH* to decrease. 1. Increased *estrogen* also triggers the pituitary gland to release *lutenizing hormone*, which causes the [[Luteal Phase|luteal phase]] to start, and the follicule releases the egg into the fallopian tupe