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LM of a mature human ovum

LM of a mature human ovum

P632/0014

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Credit

EDELMANN / SCIENCE PHOTO LIBRARY EDELMANN / SCIENCE PHOTO LIBRARY

Caption

Light micrograph of a single, mature human ovum (egg), showing the central oocyte surrounded by a layer of follicular cells, the corona radiata. Mature human ova develop in the ovaries from primordial follicles which, although formed between the 4th & 7th month of foetal development, remain dormant until sexual maturity. In each ovarian cycle up to 20 primordial follicle are activated to form primary follicles; normally only one will reach full maturity (a graafian follicle) and be released at ovulation, when the mature follice ruptures and releases the ovum to be received into the fallopian tube.

Release details

Model release not required. Property release not required.

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