Capillary And Blood Cells #2
by Steve Gschmeissner/science Photo Library
Title
Capillary And Blood Cells #2
Artist
Steve Gschmeissner/science Photo Library
Medium
Photograph - Photograph
Description
Capillary and blood cells. Transmission electron micrograph (TEM) of a section through a capillary showing red blood cells (red), a single white cell and platelets within the lumen (inner space) of the capillary. Capillaries are the smallest blood vessels in the body, only a few micrometres across, just large enough for the passage of red blood cells. The capillary lining consists of endothelial cells. Here, a pericyte can be seen surrounding the capillary. Pericytes are contractile cells that wrap around the endothelial cells of capillaries and venules. Magnification: x2000 when printed 10 centimetres wide.
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May 11th, 2022
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