Puberty and menstruation

• What does the increase of testosterone lead to?

  production of sperm
• Female puberty produces more = oestrogen
• How many eggs will mature each month?

  1
• How long does the cycle last?

  28 days
• menstruation gets rid of = unfertilised egg and old uterus lining
• When is a woman most fertile?

  ovulation
• What happens after menstruation?

  the uterus lining thickens and a follicle develops
• What day is the egg released?

  day 14
• ovulation = when an egg is released
• What is FSH released by?

  pituitary gland
• FSH causes the = egg in the ovary to mature
• oestrogen causes the development of the = uterus lining
• oestrogen stimulates = LH
• LH stops = production of FSH
• progesterone responsible for = maintaining uterus lining days 14-28