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Lumen (anatomy)

From Wikipedia, the free encyclopedia

Cavity within an organ

It can refer to:

the interior of a vessel, such as the central space in anartery,vein orcapillary through whichblood flows
the interior of thegastrointestinal tract^[2]
the pathways of thebronchi in thelungs
the interior ofrenal tubules andurinary collecting ducts
the pathways of thefemale genital tract, starting with a single pathway of thevagina, splitting up in two lumina in theuterus, both of which continue through thefallopian tubes
the fluid-filled cavity forming in theblastocyst during pre-implantation development called theblastocoel

Transluminal procedures are procedures occurring through lumina, including:^{[citation needed]}

natural orifice transluminal endoscopic surgery in the lumina of, for example, thestomach,vagina,bladder, orcolon
procedures through the lumina ofblood vessels, such as variousinterventional radiology procedures:
- percutaneous transluminalangioplasty
- percutaneous transluminalcommissurotomy

^Stedman's Medical Dictionary, 24th ed.
^Adds, John; Erica Larkcom; Ruth Miller (2004).Exchange and transport, energy and ecosystems. Nelson Advanced science (Nelson Thornes). p. 16.ISBN 0-7487-7487-4.

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