Lesson 5 — Female Hormones: Menstrual Cycle


Self-Check


ADLC


  1. Structures 1, 2, A, and B, respectively, are ________, ________, ________, and ________.

  2. Hormone 1 is ________; it can also be termed a ________.

  3. The hormone that stimulates the development of an ovum is labelled ________.

  4.  Hormones 3 and 4, respectively, are ________ and ________.

  5. Is 2 the anterior or posterior pituitary? ________

  6. One female reproductive hormone from the posterior pituitary is________.

  7. High secretions of estrogen and progesterone cause ________.

  8. Low secretions of estrogen and progesterone cause ________.

  9. High secretions of FSH and LH cause ________.


  1. hypothalamus; anterior pituitary; follicle, as it is releasing estrogen; corpus luteum (which forms after ovulation)
  2. GnRH; Releasing Factor
  3. Hormone 2; FSH
  4. LH (luteinizing hormone); progesterone
  5. anterior
  6. oxytocin
  7. negative feedback to hypothalamus and to the anterior pituitary to halt FSH and LH secretions
  8. negative feedback to the hypothalamus and anterior pituitary to stop so the anterior pituitary begins to secrete of FSH and LH
  9. positive feedback to the ovary (Increased FSH levels results in more development of follicles and secretion of estrogen in the follicular phase. This is why FSH can be used as a fertility drug. Increased LH levels increase progesterone secretion in the luteal phase.)


Biology 30 © 2008  Alberta Education & its Collaborative Partners ~ Updated by ADLC 2019