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Sperm production, SEM

Sperm production, SEM

C001/0447

Rights Managed

50.9 MB (2.2 MB compressed)

4300 x 4138 pixels

36.3 x 35.1 cm ⏐ 14.3 x 13.8 in (300dpi)

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Credit

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

Caption

Sperm production. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a seminiferous tubule in the testis, showing the tails (blue) of multiple sperm cells (spermatozoa). The seminiferous tubules are the site of spermatogenesis (sperm production). During production and maturation, the head of each sperm cell is buried in the surrounding Sertoli cells (green), which nourish the developing sperm. A connective tissue sheath (brown) surrounds each individual tubule. Magnification: x350 when printed at 10 centimetres across.

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