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Sertoli cells, TEM

Sertoli cells, TEM

C033/7110

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Credit

STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY

Caption

Sertoli cells, Coloured transmission electron micrograph (TEM) of sertoli cells (green and cyan) from a section of testis. Because their main function is to nourish the developing sperm cells (top purple) through the stages of spermatogenesis, the Sertoli cell has also been called the "mother" or "nurse" cell. Sertoli cells also act as phagocytes, consuming the residual cytoplasm during spermatogenesis. The cytoplasm contains a central nucleus, mitochondria (round green structures), lipid droplets (dark green) and agranular endoplasmic reticulum. Magnification: x3000 when printed at 10 centimetres high.

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