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Ovulation. Image 1 of 5. Endoscope view of the development of a follicle (red spot, lower left) in an ovary (white, centre left). This follicle will continue to grow, distending the surface of the ovary as it becomes a fluid-filled Graafian follicle. The follicle contains an oocyte, a female reproductive cell that is developing into an ovum (egg). The egg will not be visible on this scale. The egg will be released to travel to the uterus along the Fallopian tube (pink, centre right to top left) of its ovary. A fertilised egg may develop into a baby during pregnancy. For a sequence of endoscopic images showing the stages of ovulation, see images P616/326-330.
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