False-colour SEM of sperm in uterus

False-colour SEM of sperm in uterus

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


Caption: Sperm in uterus. False-colour scanning electron micrograph of a human sperm on the inner surface of the uterus, the endometrium. The head of the sperm appears buried in the grass-like ciliated epithelium. Tiny projections or microvilli cover the remaining secretory cells, which provide a moist environment & nutrition to both ova and sperm. Sperm remain incapable of fertilising an ovum until after undergoing capacitation, a process which occurs within the female tract. The close association of the sperm with the ciliated cells in this image may relate to this process. Magnification: x4030 at 6x7cm size.

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Keywords: anatomy, ciliated epithelium, endometrium, false-coloured, human body, in uterus, reproduction, reproductive system, sperm, uterus, with sperm

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