False-colour SEM of single human ovum

False-colour SEM of single human ovum

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This image is part of the feature Motta: Reproduction
This image is part of the feature Landscapes Of The Human Body

Credit: MOTTA & FAMILIARI/ANATOMY DEPT./UNIVERSITY "LA SAPIENZA", ROME/SCIENCE PHOTO LIBRARY

Caption: In vitro fertilisation (IVF): ovum post ovulation. False-colour scanning electron micrograph (SEM) of a single human ovum (egg), showing its protective covering, the zona pellucida (red) & remnants of the layer of follicular cells that form the corona radiata. Mature ova develop from primordial follicles formed during foetal development that remain dormant until sexual maturity. Every month, up to 20 follicles are activated to form primary follicles; normally only one attains full maturity to be released when the follicle ruptures at ovulation. Magnification: x470 at 6x7cm size.

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Keywords: anatomy, egg, false-coloured, female reproductive system, fertility, follicular cells, human, human body, images, in vitro fertilisation, ivf, ivf ovum, magnified image, microscopic photos, ovum, ovum in, reproduction, subjects, zona pellucida

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