3.siklus menstruasi
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3.siklus menstruasi

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3.siklus menstruasi 3.siklus menstruasi Presentation Transcript

  • Siklus Menstruasi
  • Siklus Reproduksi
    • Siklus Reproduksi
      • Siklus ovarium: pertumbuhan folikel s/d ovulasi dan pembentukan korpus luteum)
      • Siklus menstruasi: perubahan siklik pada endometrium
    • 4 organ utama
      • Hipothalamus
      • Hipofisis (sel alfa dan beta)
      • Uterus
      • Ovarium
  • Siklus ovarium
    • Follicle grows and matures
    • Ovulation occurs
    • Corpus luteum forms
    secondary oocyte antrum primordial follicle corpus luteum first polar body
  • Siklus menstruasi
    • Fase menstruasi: 2-6 hari, pelepasan endometrium, sekresi hormon minimal
    • Fase proliferasi (pengaruh estrogen): hari ke 5 s/d 14 dari siklus menstruasi, endometrium tumbuh sehingga siap menerima ovum yang dibuahi, sedangkan di ovarium terjadi pematangan folikel
    • Fase sekresi/ fase luteal (pengaruh progesteron): hari ke 14 s/d 28 dari siklus menstruasi, terbentuk korpus luteum, terlihat hari ke 22 (nidasi terjadi), bila tidak maka E dan P menghambat FSH dan LH
  • Siklus menstruasi
  • Cycle Overview hypothalamus anterior pituitary FSH LH FSH LH LH estrogens estrogens FOLLICULAR PHASE LUTEAL PHASE menstruation ovulation GnRH FSH LH estrogens progesterone
    • GnRH secretion affects LH and FSH secretion by pituitary
    • LH and FSH affect follicle maturation
    • Estrogen and progesterone from ovary affect uterus