Artwork of section through human testis

Artwork of section through human testis

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Credit: JOHN BAVOSI/SCIENCE PHOTO LIBRARY

Caption: Illustration of a section through a single human testis, one of a pair of male sex organs that are the site of production of spermatozoa (spermatogenesis) and androgen, the male sex hormone. The bulk of testes consists of seminiferous tubules, the site of spermatogenesis. These are arranged in testicular lobes that radiate from a central plexus, the rete testis. Spermatozoa pass through the rete testis into the cap-like epididymis via 12 small ductuli efferentes (4 visible here). Sperm mature in the epididymis and are stored in its lower part until passing into the vas deferens (left, entwined with artery & vein) during ejaculation.

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Keywords: anatomy, artwork, epididymis, human body, male, reproduction, reproductive system, seminiferous tubule, testis

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