Female reproductive system - ovaries, Biology

OVARIES -

  1. 2 in number (didelphic). White / pinkish. Almond like. 3 cm long, 2 cm wide, 1 cm thick.
  2. Lie in the lower part of abdomen attached to dorsal wall by mesovarium.
  3. Attached to uterus by ovarian ligament.
  4. In wall of ovary visceral peritonium, germinal epithelium, & tunica albuginea present.
  5. Germinal epithelium is made up of P.G.C.
  6. Ground part of ovary is stroma differntiated in to outer cortex & inner medulla. Mesodermal in origin.
  7. P.G.C. of germinal epithelium is endodermal in origin.
  8. First of all from P.G.C. follicle cells are formed. Fuse to form egg nest.
  9. One is developing ovum, rest cells are destroyed to give nourishment to developing ovum.
  10. Destroyed cells are atratic cells. This phenomenon is atrasia.
  11. First it is single layered termed as primary follicle. Soon it becomes double layered i.e. secondary follicle.
  12. It is soon converted into graffian follicles or mature follicle. It's formation is folliculogenesis under control of FSH & LH.

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Posted Date: 10/3/2012 5:27:30 AM | Location : United States







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