- Source: Eparterial bronchus
The eparterial bronchus (right superior lobar 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 right pulmonary artery, and for this reason is named the eparterial bronchus. All other distributions falling below the pulmonary artery are termed hyparterial.
The eparterial bronchus is the only secondary bronchus with a specific name apart from the name of its corresponding lobe.
Name
The classification of eparterial and hyparterial is attributed to Swiss anatomist and anthropologist Christoph Theodor Aeby, and is central to his model of the anatomical lung. He presented this model in a monograph titled, "Der Bronchialbaum der Säugethiere und des Menschen, nebst Bemerkungen über den Bronchialbaum der Vögel und Reptilien".
References
This article incorporates text in the public domain from page 1097 of the 20th edition of Gray's Anatomy (1918)
External links
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
