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lumen
(redirected from lumenal)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.03 sec.
lumen /lu·men/ (loo´men) pl. lu´mina   [L.]
1. the cavity or channel within a tube or tubular organ.
2. the SI unit of luminous flux; it is the light emitted in a unit solid angle by a uniform point source with luminous intensity of one candela.lu´minal

residual lumen  the remains of Rathke's pouch, between the distal and intermediate parts of the pituitary gland.

lu·men (lmn)
n. pl. lumens or lu·mi·na (-m-n)
1. The inner open space or cavity of a tubular organ, as of a blood vessel.
2. The unit of luminous flux in the International System of Units, equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions.

lumen·al, lumin·al adj.

Lumen
The inner cavity or canal of a tube-shaped organ, such as the bowel.
Mentioned in: Amebiasis

lumen
[lo̅o̅′mən] pl. lumina, lumens
Etymology: L, light
1 a tubular space or the channel within any organ or structure of the body.
2 a unit of luminous flux that equals the flux emitted in a unit solid angle by a point source of one candle intensity. lumenal, luminal, adj.

lumen [lu´men] (L.)
1. the cavity or channel within a tube or tubular organ, as a blood vessel or the intestine.
2. the SI unit of rate of flow of radiant energy, specifically that of the visible spectrum. adj., adj lu´minal.

lumen (loo´mn),
n the space within a tube structure, such as a blood vessel, tube, or duct.

lumen
pl. lumina [L.]
1. the cavity or channel within a tube or tubular organ, as a blood vessel or the intestine.
2. the SI unit of light flux.

lumen
1. SI unit of luminous flux. It is equal to the flux emitted within a unit solid angle of one steradian by a point source with a luminous intensity of one candela. Symbol: lm. 2. The space in the interior of a tubular organ, such as an artery. See luminous flux; quantity of light; lux; SI unit.
Table L4 Approximate luminance (in cd/m2) of some objects
sun109
car headlight107
incandescent lamp (tungsten)106-107
fluorescent lamp104-105
clear sky at noon104
cloudy sky at noon103
shady street by day103-104
full moon103
book print under artificial light>102
photopic vision>10
street illumination1-10−1
mesopic vision10-10−3
cloudless night sky with full moon10−2
scotopic vision<10−3
moonless and cloudless night sky10−3-10−6


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It could be via mast cell activation that the mechanism of pain of IBS is initiated rather than lumenal distension.
Many of the airways from Mexico City also showed lumenal distortion (Figure 1C).
A-ALP, a model protein which consists of the cytoplasmic domain of dipeptidyl aminopeptidase A and the transmembrane and lumenal domains of alkaline phosphatase is a resident protein of the trans-Golgi network (TGN) in yeast.
 
 
 
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