Describe the role of hormones in the human menstrual cycle

K.C.S.E Biology Q & A - MODEL 2000PP1QN18

Describe the role of hormones in the human menstrual cycle

answers

​Inferior lobe of pituitary gland secretes F.S.H which causes grafian follicle develops in the ovary. It also stimulates ovary tissue/ ovary/ follicle walls secret estrogen which repairs, heals uterine wall, oestrogen stimulates inferior lobe of pituitary gland produce L.H. for ovulation. It also causes grafian follicle change into corpus interim  L.H stimulates corpus luteum secret progesterone which causes proliferation of the uterine walls; in preparation  of implantation; oestrogen/ progesterone  inhibits the production of F.S.H  ( by  anterior lobe of pituitary) thus no more follicle develop; and oestrogen production  reduces; 14 days later progesterone  level rises inhibits production  of L.H from  anterior  lobe  of pituitary  gland produce L.H for ovulation. It also causes grafian follicle change into corpus interim  L.M stimulates corpus luteum secret progesterone which causes proliferation of the uterine  walls in preparation of implantation;  oestrogen/ progesterone inhibits the  production of F.S.H ( by anterior lobe of  pituitary) thus no more  follicle develop; and oestrogen  production reduces; 14 days  later progesterone level rises inhibits  production of L.H from anterior lobe of pituitary gland/ The corpus luteum stops secreting  progesterone, and menstruation occur  when the level  of progesterone drops; (  anterior lobe  of pituitary starts secreting F.S.H again.