Sperm production, SEM

Sperm production, SEM


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Sperm production. Coloured scanning electron micrograph (SEM) of sperm cells (blue tails) that are developing inside a seminiferous tubule, the site of sperm production in the human testis. The developing heads of the sperm cells (green red, across bottom) are embedded in a layer of Sertoli cells (red) that nourish the developing sperm. It is the heads that contain the genetic material used to fertilise the female egg cell. The process of sperm cell formation is called spermatogenesis. Magnification: x2200 when printed 10cm wide.

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Model release not required. Property release not required.

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