London, United Kingdom
Photograph - Photograph
Maturing sperm. Coloured freeze-fracture scanning electron micrograph (SEM) of healthy spermatozoa (sperm, white) in the epididymis. This is a 7- metre-long coiled tube that lies behind the testis, where the sperm are produced. The sperm mature as they pass slowly along the epididymis, until they are ready to be ejaculated. Magnification x1600 at 6x7cm size.
May 1st, 2013
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