Life goes on 0.0 / 5 ? BiologyThe living body - Life goes onGCSEOCR Created by: emilyparsonsCreated on: 11-03-16 17:08 What is FSH and what part does it play in the menstrual cycle? Follicle stimulating hormone - stimulates an egg to develop in an ovary 1 of 9 What is LH and what part does it play in the menstrual cycle? Luteinising hormone - controls ovulation (egg release) 2 of 9 What part does Progesterone play in the menstrual cycle? Maintains the uterus wall 3 of 9 What part does Oestrogen play in the menstrual cycle? Repairs the uterus wall 4 of 9 Where are FSH and LH released from? The pituitary gland in the brain 5 of 9 What do negative feedback mechanisms do? Control the levels of the sex hormones in the menstrual cycle - the cycle is triggered by the receptors in the hypothalamus 6 of 9 When does menstruation occur? When oestrogen and progesterone levels are low 7 of 9 What triggers the cycle to begin again? A message is sent to the hypothalamus that hormone levels are low 8 of 9 What happens if a egg is fertilised? The levels of progesterone remain high and no FSH is produced, so no more eggs develop and the uterus lining does not break down 9 of 9
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