Sperm production site, SEM

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Sperm production site, SEM

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 (white/green) 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. Then, the sperm cells mature into their mobile form in a process known as spermiogenesis. Each testis has about 500 of these tubules that are 30-70cm long. Magnification: x70 when printed 10cm wide

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6450761

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Cross Section Horizontal Production Re Production Reproductive System Sperm Testis Tubule Section Sectioned

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