KALLISTA IMAGES, VISUALS UNLIMITED / SCIENCE PHOTO LIBRARY KALLISTA IMAGES, VISUALS UNLIMITED / SCIENCE PHOTO LIBRARY
Capillary. Coloured transmission electron micrograph (TEM) of a section through mammalian pancreas tissue showing a red blood cell (red) in the lumen of a capillary. The capillary lining consists of endothelial cells. At bottom left is a neuron (green). Mitochondria (orange) are seen in the cell at right.
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