pulmonary 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.

pul·mo·nar·y ac·i·nus

that part of the airway consisting of a respiratory bronchiole and all of its branches. Synonym(s): primary pulmonary lobule, respiratory lobule

pul·mo·nar·y aci·nus

(pul'mŏ-nār-ē as'i-nŭs) That part of the airway consisting of a respiratory bronchiole and all of its branches.
Synonym(s): primary pulmonary lobule.