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Leydig cells, TEM

Leydig cells, TEM

C015/1064

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Credit

MICROSCAPE / SCIENCE PHOTO LIBRARY MICROSCAPE / SCIENCE PHOTO LIBRARY

Caption

Leydig cells. Transmission electron micrograph (TEM) of a section through a group of Leydig cells in the intertubular tissue of a testis (testicle). Leydig cells are the principle source of androgens (male sex hormones), specifically testosterone, which stimulates spermatogenesis (sperm development), and by entering the circulation acts upon androgen-dependent tissues elsewhere in the body. The cells contain many mitochondria (dark grey, oval), smooth endoplasmic reticulum and numerous lipid droplets (light grey circles). Magnification: x4,000 when printed 10 centimetres wide.

Release details

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