Sperm production site, SEM

Sperm production site, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Sperm production site. Coloured scanning electron micrograph (SEM) of sectioned seminiferous tubules, the sites of sperm production in the human testes. Each tubule contains a swirl of the tails of forming sperm cells (purple) at its centre. The tubules are lined with a stratified epithelium containing two types of cell: Sertoli cells, which nourish developing sperm, and spermatogenic cells, from which the sperm cells form in a process known as spermatogenesis. After this, the sperm cells mature into their mobile form in a process known as spermiogenesis. Magnification unknown.

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Keywords: anatomy, biology, coloured, human body, male, production, reproduction, reproductive system, scanning electron micrograph, section, sem, seminiferous tubule, site, sperm, spermatogenesis, spermiogenesis, testis, tubules

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