liver acinus

(redirected from Rappaport acinus)

acinus

 [as´ĭ-nus] (pl. a´cini) (L.)
any of the smallest lobules of a compound gland.
liver acinus the smallest functional unit of the liver, a mass of liver parenchyma that is supplied by terminal branches of the portal vein and hepatic artery and drained by a terminal branch of the bile duct.
 Liver acinus: Hepatic lobules are represented by hexagons (solid lines); liver acinus is represented by rhombus (dotted line). From Dorland's, 2000.
pulmonary acinus terminal respiratory unit.

liv·er ac·i·nus

a functional unit of the liver, comprising all liver parenchyma supplied by a terminal branch of the portal vein and hepatic artery; typically involves segments of two lobules lying between two terminal hepatic venules.
Synonym(s): Rappaport acinus

liv·er ac·i·nus

(liv'ĕr as'i-nŭs)
The smallest functional unit of the liver, comprising all of the liver parenchyma supplied by a terminal branch of the portal vein and hepatic artery.

acinus

pl. acini [L.] any of the smallest lobules of a compound gland.

liver acinus
the smallest functional unit of the liver made up of two wedge-shaped masses of liver parenchyma that are supplied by two neighboring branches of the portal vein and hepatic artery and drained by two central veins and by terminal branches of the bile duct.