Human eggs are produced by follicles, fluid-filled sacs on the side of the ovary, which, around the time of ovulation, produce a reddish protrusion seen in the pictures. The egg comes from the end of this, surrounded by a jelly-like substance containing cells. The egg itself is only the size of a full-stop, and the whole ovary, which contains many immature eggs, just a couple of inches long. They
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