Capillary SEM

Capillary with red blood cells
Color-enhanced image of a capillary. The endothelial cells (purple) that line the blood vessel are surrounded by supporting pericytes (turquoise). Two red blood cells can be seen inside the capillary.

Image from Wellcome Images (link)  photo credit Rob Young. Creative Commons by-nc-nd 2.0 UK: England & Wales

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