In biology, a lumen (pl.: lumina) is the inside space of a tubular structure, such as an artery or intestine. It comes from Latin lumen 'an opening'....

Look up lumen in Wiktionary, the free dictionary. Lumen may refer to: Lumen (unit), the SI unit of luminous flux Lumen (anatomy), the cavity or channel...

openings. They incorporate an endotracheal lumen which terminates in the trachea and an endobronchial lumen, the distal tip of which is positioned 1–2 cm...

the rest of its surface. Lumen (anatomy) Saladin, Kenneth (2011). Human anatomy (3rd ed.). p. 655. ISBN 9780071222075. Anatomy photo: Digestive/mammal/system1/system10...

Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or...

1980s Inner product space, a kind of vector space in linear algebra Lumen (anatomy), an inner space, lining, or cavity Outer space (disambiguation) This...

a foundry type made by Ludwig & Mayer Lumina, the plural form for Lumen (anatomy), the innermost layer of a hollow organ such as the stomach or an artery...

Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts...

a site for an intravenous cannula. This is due to its particularly wide lumen, and its tendency to remain stationary upon needle insertion. The median...

walled test tubes with a central hole down the length of the tube (the crypt lumen). Four tissue sections are shown here, two cut across the long axes of the...