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 contains 3-12 acini, and adjacent acini are separated by incomplete intralobular septae.

See also

Thoracic anatomy
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Article information

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

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Cases and figures

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    Pulmonary acinus
    Secondary pulmonary lobule: diagram
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