Pulmonary acinus
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- updated 6 Dec 2023:
Nothing to disclose
Updates to Article Attributes
Body
was changed:
The pulmonary acinus is an anatomical unit of lung supplied by a first order respiratory bronchiole, 4-8 mm in diameter. The component respiratory bronchioles, alveolar ducts and alveoli take part in gas exchange 2.
Each secondary pulmonary lobule usually contains 3-25 acini, and adjacent acini are separated by incomplete intralobular septa.
Clinical importance
The component respiratory bronchioles, alveolar ducts and alveoli take part in gas exchange 2.
Related pathology
In disease, the acini may be filled with fluid and cells and may appear as small ill-defined “air space nodules”.
See also
-<p>The <strong>pulmonary acinus</strong> is an anatomical unit of lung supplied by a first order respiratory bronchiole, 4-8 mm in diameter. The component respiratory bronchioles, alveolar ducts and alveoli take part in gas exchange <sup>2</sup>. </p><p>Each <a href="/articles/secondary-pulmonary-lobule">secondary pulmonary lobule</a> usually contains 3-25 acini, and adjacent acini are separated by incomplete <a href="/articles/intralobular-septa">intralobular septa</a>.</p><p>In disease, the acini may be filled with fluid and cells and may appear as small ill-defined “air space nodules”.</p><h4>See also</h4><ul><li><p><a href="/articles/thoracic-hrct-terminology">HRCT terminology</a></p></li></ul>- +<p>The <strong>pulmonary acinus</strong> is an anatomical unit of lung supplied by a first order respiratory bronchiole, 4-8 mm in diameter. Each <a href="/articles/secondary-pulmonary-lobule">secondary pulmonary lobule</a> usually contains 3-25 acini, and adjacent acini are separated by incomplete <a href="/articles/intralobular-septa">intralobular septa</a>.</p><h4>Clinical importance</h4><p>The component respiratory bronchioles, alveolar ducts and alveoli take part in gas exchange <sup>2</sup>.</p><h4>Related pathology</h4><p>In disease, the acini may be filled with fluid and cells and may appear as small ill-defined “air space nodules”.</p><h4>See also</h4><ul><li><p><a href="/articles/thoracic-hrct-terminology">HRCT terminology</a></p></li></ul>
References changed:
- 3. Webb W. Thin-Section CT of the Secondary Pulmonary Lobule: Anatomy and the Image—The 2004 Fleischner Lecture. Radiology. 2006;239(2):322-38. <a href="https://doi.org/10.1148/radiol.2392041968">doi:10.1148/radiol.2392041968</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/16543587">Pubmed</a>
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