INNERSPACE IMAGING / SCIENCE PHOTO LIBRARY INNERSPACE IMAGING / SCIENCE PHOTO LIBRARY
Sperm production. Coloured scanning electron micrograph (SEM) of healthy spermatozoa (sperm) emerging from a cavity in the rete testis of a testis. The testes are the male organs that produce sperm, the male gametes (sex cells). The rete testis is a network of tiny tubes that links the seminiferous tubules, where the sperm are formed, to the efferent ducts (vasa efferentia). These ducts carry the sperm to the epididymis, a structure behind the testis where the sperm mature and are stored ready for ejaculation. Magnification unknown.
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