Eparterial bronchus

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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.)
Latin ramus bronchialis eparterialis
Gray's subject #240 1097
Dorlands/Elsevier b_23/12198316

The right bronchus gives off, about 2.5 cm. from the bifurcation of the trachea, a branch for the superior lobe. This branch arises above the level of the pulmonary artery, and is therefore named the eparterial bronchus.

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

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.


Lungs and related structures
v  d  e

lungs: right, left, lingula, apex, base, root, cardiac notch, cardiac impression, hilum, borders (anterior, posterior, inferior), surfaces (costal, mediastinal, diaphragmatic), fissures (oblique, horizontal)

airway: trachea, carina, bronchi, main bronchus (right, left), lobar/secondary bronchi (eparterial bronchus), segmental/tertiary bronchi (bronchopulmonary segment), bronchiole, alveolar duct, alveolus

pleurae: parietal pleura (cervical, costal, mediastinal, diaphragmatic), pulmonary pleura, pulmonary ligament, recesses (costomediastinal, costodiaphragmatic)