Tags: Anatomical Structure.
An acinus (/ˈæsɨnɨs/) (plural acini; adjective acinar [/ˈæsɨnər/] or acinous) refers to any cluster of cells that resembles a many-lobed berry such as a raspberry (acinus is Latin for berry). The berry-shaped termination of an exocrine gland where the secretion is produced is acinar in form as is the alveolar sac containing multiple alveoli in the lungs.
