Puberty and the menstrual cycle

Cards (35)

  • What is the main focus of today's video?
    Reproductive hormones and the menstrual cycle
  • What is puberty?
    The period of developing secondary sexual characteristics
  • What triggers the process of puberty?
    Reproductive hormones
  • What hormone is mainly responsible for male puberty?
    Testosterone
  • Where is testosterone produced?
    In the testes
  • What does testosterone stimulate in men?
    Sperm production
  • What hormone is mainly responsible for female puberty?
    Estrogen
  • Where is estrogen produced?
    In the ovaries
  • What are the four stages of the menstrual cycle?
    1. Menstruation
    2. Uterus lining buildup
    3. Ovulation
    4. Uterus lining maintenance
  • What is the average length of a menstrual cycle?
    Around 28 days
  • What does the red line in the menstrual cycle graph represent?
    The thickness of the uterus lining
  • What happens during stage one of the menstrual cycle?
    Menstruation occurs with bleeding
  • How long does menstruation typically last?
    About four days
  • What occurs during stage two of the menstrual cycle?
    The uterus lining builds up again
  • How long does stage two last?
    Around ten days
  • What is the purpose of the thick spongy layer in stage two?
    To prepare for a fertilized egg
  • What happens during stage three of the menstrual cycle?
    Ovulation occurs with egg release
  • How long does ovulation last?
    One day
  • What occurs during stage four of the menstrual cycle?
    The uterus lining is maintained
  • How long does stage four last?
    From day 14 to day 28
  • What happens if no fertilized egg reaches the uterus?
    The uterus lining breaks down
  • What happens if a fertilized egg implants in the uterus?
    The menstrual cycle stops
  • What hormones are involved in the menstrual cycle?
    1. Estrogen
    2. Progesterone
    3. Luteinizing hormone (LH)
    4. Follicle stimulating hormone (FSH)
  • What hormone stimulates the uterus lining to grow?
    Estrogen
  • What role does progesterone play in the menstrual cycle?
    Maintains the lining of the uterus
  • What happens if progesterone levels drop?
    The uterus lining breaks down
  • Where are LH and FSH produced?
    In the pituitary gland
  • What does FSH stimulate in the ovaries?
    One of the eggs to mature
  • What does LH stimulate on day 14?
    The release of the egg (ovulation)
  • How do the hormones interact during the menstrual cycle?
    • FSH stimulates estrogen production
    • Estrogen inhibits FSH
    • High estrogen levels stimulate LH release
    • Progesterone inhibits both LH and FSH
  • What happens when estrogen levels are high?
    They stimulate the release of LH
  • What does progesterone inhibit?
    Both LH and FSH
  • What is the outcome if a fertilized egg implants?
    The menstrual cycle stops
  • What is the role of the uterus lining during the menstrual cycle?
    It builds up and breaks down
  • How does the menstrual cycle change if pregnancy occurs?
    The cycle stops and does not repeat