menstrual cycle

Cards (23)

  • What is the endocrine system responsible for?
    Releasing hormones into the bloodstream
  • What hormone do the testes produce?
    Testosterone
  • What does testosterone stimulate in men?
    Production of sperm
  • What hormone do the ovaries produce?
    Estrogen
  • What happens to eggs in the ovaries after puberty begins?
    They start to mature
  • What is ovulation?
    Release of an egg every 28 days
  • What occurs to the uterus lining during ovulation?
    It becomes thick and spongy
  • What happens if the egg is fertilized?
    It can implant into the uterus wall
  • What happens if the egg is not fertilized?
    The egg and uterus lining are released
  • What are the four key hormones involved in the menstrual cycle?
    • Follicle stimulating hormone (FSH)
    • Luteinizing hormone (LH)
    • Estrogen
    • Progesterone
  • What does follicle stimulating hormone (FSH) do?
    Causes an egg to mature in the ovary
  • What is the role of luteinizing hormone (LH)?
    Causes the egg to be released
  • What is the function of estrogen in the menstrual cycle?
    Maintains the uterus lining and inhibits FSH
  • What does progesterone do after ovulation?
    Prevents release of FSH and LH
  • What happens to progesterone levels if fertilization does not occur?
    Progesterone levels fall
  • How does FSH affect estrogen production?
    FSH triggers the ovaries to make estrogen
  • What is the relationship between estrogen and FSH levels?
    Estrogen inhibits FSH production
  • What happens to LH levels during ovulation?
    LH levels peak around day 14
  • What is the significance of the menstrual cycle's 28-day duration?
    It indicates the regularity of ovulation
  • What is the outcome if fertilization occurs?
    The fertilized egg can implant in the uterus
  • What is the role of the pituitary gland in the menstrual cycle?
    It releases FSH and LH
  • How do the levels of hormones change during the menstrual cycle?
    They fluctuate in response to each other
  • What is the result of the menstrual cycle if no fertilization occurs?
    The woman has a period