Intestinal endocrine cell, coloured transmission electron micrograph (TEM). This is a type 1 intestinal endocrine cell. The granules (red) contain ser

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Intestinal endocrine cell, coloured transmission electron micrograph (TEM). This is a type 1 intestinal endocrine cell. The granules (red) contain serotonin, a chemical responsible for smooth muscle contraction. The cell nucleus (orange) is at lower centre. Magnification: x10,

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Size: 4300px × 4136px
Photo credit: © STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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