canaliculus

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Related to Bile canaliculi: canaliculus, Canal of Hering, Space of Disse

canaliculus

 [kan″ah-lik´u-lus] (pl. canali´culi) (L.)
an extremely narrow tubular passage or channel. adj., adj canalic´ular.
bile canaliculi fine tubular channels forming a three-dimensional network within the parenchyma of the liver. They join to form the bile ductules and eventually the hepatic duct.
bone canaliculi branching tubular passages radiating like wheel spokes from each bone lacuna to connect with the canaliculi of adjacent lacunae, and with the haversian canal.
lacrimal canaliculus the short passage in an eyelid, beginning at the lacrimal point and draining tears from the lacrimal lake to the lacrimal sac; called also lacrimal duct. See also lacrimal apparatus.
mastoid canaliculus a small channel in the temporal bone transmitting the auricular branch of the vagus nerve.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

can·a·lic·u·lus

, pl.

can·a·lic·u·li

(kan'ă-lik'yū-lŭs, -lī), [TA]
A small canal or channel.
See also: iter.
[L. dim. fr. canalis, canal]
Farlex Partner Medical Dictionary © Farlex 2012

canaliculus

(kăn′ə-lĭk′yə-ləs)
n. pl. canalicu·li (-lī′)
A small canal or duct in the body, such as the minute channels in compact bone.

can′a·lic′u·lar (-lər) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

can·a·lic·u·lus

, pl. canaliculi (kan'ă-lik'yū-lŭs, -lī) [TA]
A small canal or channel.
See also: iter
[L. dim. fr. canalis, canal]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

canaliculus

A narrow channel in the body, such as a tear duct. The lacrimal canaliculi run fron the inner corner of each eyelid to the LACRIMAL SAC.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

can·a·lic·u·lus

, pl. canaliculi (kan-ă-lik'yū-lŭs, -lī) [TA]
A small canal or channel.
[L. dim. fr. canalis, canal]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The gamma counter placed over the liver lobe quantifies simultaneously count rates originating from sinusoids, interstitium, bile canaliculi, and hepatocytes.
The transfer rates from hepatocytes to bile canaliculi or interstitium are also measured.
MEB is transported from sinusoids into bile canaliculi by the same transporters as Gd-BOPTA, but its extraction ratio is much higher (94%) than that of Gd-BOPTA (8%).
According to its fast and steady distribution, additional signal intensity observed during Gd-BOPTA perfusion relates to the hepatocyte entry and the transfer into bile canaliculi. Because contrast agents are perfused with a KHB containing no protein, protein binding does not alter the Gd-BOPTA entry.
Liver parenchyma is divided into sinusoids, interstitium, hepatocytes, and bile canaliculi. In clinical MRI, the averaged signal intensity is quantified in regions of interest, but concentrations from each compartment cannot be estimated.
At the beginning of perfusion, the Gd-BOPTA elimination from sinusoids to livers ([sub.SIN][ELIMR.sub.LIVER]) is much higher than the elimination rates from hepatocytes to bile canaliculi ([sub.HC][ELIMR.sub.BILE]).
According to its fast and steady distribution, additional signals observed during Gd-BOPTA perfusion relate to the hepatocyte entry and the transfer into bile canaliculi. In rats with chronic liver diseases, the Gd-BOPTA-induced enhancements are not related to the modified expression of Gd-BOPTA transporters, emphasising the need for the simultaneous quantification of the hepatocyte concentrations and the transfer rates across cellular membranes in IPRL.
Once inside hepatocytes, Gd-BOPTA exits into bile canaliculi (BC) across the multiple resistance-associated protein 2 (Mrp2) or back into sinusoids across the sinusoidal membrane.
(c) Concentration gradients between bile canaliculi and hepatocytes over time.