- Eparterial bronchus
Name = Eparterial bronchus
Latin = ramus bronchialis eparterialis
GraySubject = 240
GrayPage = 1097
Mediastinal surfaceof right lung. (Eparterial bronchus labeled at center right.)
Caption2 = Front view of cartilages of larynx, trachea, and bronchi. (Eparterial bronchus not labeled, but visible at center left.)
DorlandsPre = b_23
DorlandsSuf = 12198316
Also known as the right superior lobar bronchus, the eparterial bronchus is a branch of the
right main bronchusgiven 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 bronchuswith a specific name apart from the name of its corresponding lobe.
* - "Pleural Cavities and Lungs: The Bronchi and Their Divisions"
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