Menstrual cycle and puberty

Cards (34)

  • What triggers puberty in adolescents?
    Reproductive hormones
  • What are secondary sexual characteristics?
    Physical changes during puberty
  • At what ages does puberty usually begin?
    Between 8 and 14 years
  • What hormone triggers puberty in males?
    Testosterone
  • Where is testosterone produced in males?
    In the testes
  • What hormone triggers puberty in females?
    Estrogen
  • Where is estrogen produced in females?
    In the ovaries
  • What do these hormones trigger in males and females?
    Sperm production and menstrual cycle
  • What is the average length of a menstrual cycle?
    Around 28 days
  • What does the uterus lining do during the menstrual cycle?
    Builds up and breaks down
  • What is stage one of the menstrual cycle?
    Menstruation
  • How long does menstruation typically last?
    About 4 days
  • What happens during stage two of the menstrual cycle?
    The uterus lining builds up
  • How long does stage two last?
    Around 10 days
  • What is the purpose of the thick spongy layer in stage two?
    To prepare for a fertilized egg
  • What occurs during stage three of the menstrual cycle?
    Ovulation
  • How long does ovulation last?
    One day
  • What happens in stage four of the menstrual cycle?
    The uterus lining is maintained
  • 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 hormone stimulates the uterus lining to grow?
    Estrogen
  • What happens to estrogen levels during stage two?
    They increase
  • What hormone maintains the uterus lining in stage four?
    Progesterone
  • What happens if progesterone levels drop?
    The uterus lining breaks down
  • What is the role of follicle-stimulating hormone (FSH)?
    Stimulates egg maturation
  • Where is FSH produced?
    In the pituitary gland
  • What does luteinizing hormone (LH) stimulate?
    The release of the egg
  • When does ovulation occur in the menstrual cycle?
    On day 14
  • How do estrogen and FSH interact during the menstrual cycle?
    Estrogen inhibits FSH release
  • What happens to LH levels during ovulation?
    They spike
  • What inhibits the release of LH and FSH towards the end of the cycle?
    Increased progesterone levels
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