Lumen (anatomy)

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Cross section of the gut. The lumen is the space in the middle.

In biology, a lumen (Lat. lūmen, an opening or light) (pl. lumina) is the inside space of a tubular structure, such as an artery or intestine.[1] By extension, the term lumen is also used to describe the inside space of a cellular component or structure, such as the endoplasmic reticulum.

Examples of lumina

Transluminal procedures

Transluminal procedures are procedures occurring through lumina, including:

See also

References

  1. Stedman's Medical Dictionary, 24th ed.

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