Lumen (anatomy)

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Artery anatomy, showing lumen

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


A lumen (Lat. lūmen, an opening or light) (pl. lumina) is an inner space, lining or cavity.

  • The interior of a vessel within the body, such as the small central space in an artery or vein, or any of their relating vessels through which blood flows.

On a larger scale it may refer to

General structure of the gut wall showing the lumen in the middle

See also

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Template:WikiDoc Sources

  1. Adds, John. Exchange and transport, energy and ecosystems. Nelson Advanced science (Nelson Thornes web site). p. 16. ISBN 0-7487-7487-4. Unknown parameter |coauthors= ignored (help); External link in |publisher= (help)