Medical Definition of Pulmonary acinus
Pulmonary acinus: The ending of a tiny airway in the lung, where the alveoli (air sacs) are located.
In anatomy, an acinus is a round cluster of cells, usually epithelial cells, that looks somewhat like a knobby berry.
The word "acinus" means "berry" in Latin. (The plural is "acini".) There are also acini, round clusters of epithelial cells, in the salivary glands and in the pancreas.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
eMedicineHealth Top News
- Personalized Tips for Managing Migraine
- Do You Take Good Care of Your Eyes?
- Tips for a Clean Home & Healthy Cat