Development Animation - Ovary

From Embryology
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Ovary and Uterus Development

This animation shows the process of early uterus and ovary development.

  • The mesonephric duct(purple) degenerates, small remnants may remain as epoophoron and paroophoron (in the mesentry of the ovary) and Gartner's cycts (near vagina).
  • The paramesonephric duct (red, left) grows forming the oviduct (uterine horn) and the end opens into the peritoneal cavity and terminates in fimbria (finger-like extensions). Away from the ovary, the two paramesonephric ducts fuse in the midline to form the uterus.
  • The cortical sex cords (orange) form after the primary sex cords degenerate and mesothelium forms secondary cords.
  • The surrounding connective tissue (pink) differentiates to form follicle cells.

Compare this animation with that for testis development animation.

Embryonically, both gonads (testis and ovary) and internal genital tracts (ductus deferens and uterus) begin with the same basic elements that have divergent pathways under the initial influence of the sex chromosomes (Y and X).

Links: Quicktime | Quicktime version | Flash version | Testis Flash | Ovary Development