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Eparterial bronchus

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Title: Eparterial bronchus  
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Eparterial bronchus

Eparterial bronchus
Mediastinal surface of right lung. (Eparterial bronchus labeled at center right.)
Front view of cartilages of larynx, trachea, and bronchi. (Eparterial bronchus not labeled, but visible at center left.)
Details
Latin ramus bronchialis eparterialis
Dorlands
/Elsevier
b_23/12198316
Anatomical terminology

Also known as the right superior lobar bronchus, the eparterial bronchus is a branch of the right main bronchus given off about 2.5 cm from the bifurcation of the trachea. This branch supplies the superior lobe of the right lung and is the most superior of all secondary bronchi. It arises above the level of the pulmonary artery, and for this reason is named the eparterial bronchus. All other distributions falling below the pulmonary artery are termed hyparterial. This classification is attributed to Christoph Theodor Aeby (1835–1885) and is central to his model of the anatomical lung which he presented in a monograph titled, "Der Bronchialbaum der Säugethiere und des Menschen, nebst Bemerkungen über den Bronchialbaum der Vögel und Reptilien" (Leipzig : Wilhelm Engelmann, 1880).

The eparterial bronchus is the only secondary bronchus with a specific name apart from the name of its corresponding lobe.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

  • 1080754234 at GPnotebook
  • Anatomy photo:19:17-0103 at the SUNY Downstate Medical Center - "Pleural Cavities and Lungs: The Bronchi and Their Divisions"
  • MedEd at Loyola Grossanatomy/dissector/practical/thorax/thorax10.html




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