As of the latest update, Google Chrome and Microsoft Edge have made a breaking change to how file uploads are handled. Once your system installs this update, you will not be able to upload new images. Please use another browser until we can get it fixed.

Pulmonary acinus

Pulmonary acinus is commonly defined as the portion of lung distal to a terminal bronchiole and supplied by a first-order respiratory bronchiole or bronchioles 1

Each secondary pulmonary lobule usually contains 3-12 acini, and adjacent acini are separated by incomplete intralobular septa.

See also

Anatomy: Thoracic

Anatomy: Thoracic

Share article

Article information

rID: 8766
System: Chest
Section: Anatomy
Synonyms or Alternate Spellings:
  • Pulmonary acini
  • Acini of the lung

Support Radiopaedia and see fewer ads

Cases and figures

  • Secondary pulmonary lobule: diagram
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.