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Capillary — Free Biology Illustration | GPAI | GPAI

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Capillary

Capillary

Biology

Capillary

A very narrow microscopic capillary depicted as a delicate pale pink to light red, threadlike tubular blood vessel with an extremely small lumen and an exceptionally thin, smooth wall formed by a single layer of flattened endothelial cells with surrounding basal lamina. It may appear as a short cylindrical or slightly curved segment, or as a fine branching hairlike vessel in a microvascular network. The lumen is just wide enough for red blood cells to pass in single file, with occasional red blood cells visible inside.

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