liver acinus


The smallest functional unit of the liver, comprising all the liver parenchyma, composed of segments of several hepatic lobules, and having as its central axis a terminal branch of the portal vein, hepatic artery, and bile duct.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.