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Testis, light micrograph

Testis, light micrograph

C021/0036

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Credit

DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY

Caption

Testis. Light micrograph of a transverse section through a testis from a rat (Rattus sp.) showing the seminiferous tubules (dark purple). The seminiferous tubules are the site of sperm production (spermatogenesis). Mature sperm cells can be seen closest to each tubule's lumen (white), with their tails protruding into the lumen. Moving away from the lumen are increasingly immature precursor cells; first spermatids, then spermatocytes and finally spermatogonia. The outermost cells are sertoli cells, which nourish the maturing sperm. Magnification: x37 when printed at 10 centimetres tall.

Release details

Model release not required. Property release not required.

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