The eparterial bronchus (right superior lobar bronchus) is a branch of the

right main bronchus A bronchus is a passage or airway in the lower respiratory tract that conducts Atmosphere of Earth, air into the lungs. The first or primary bronchi pronounced (BRAN-KAI) to branch from the trachea at the Carina of trachea, carina are the right ma ...

given off about 2.5 cm from the

bifurcation of the trachea In anatomy, the carina or tracheal bifurcation is a ridge of cartilage in the trachea that occurs between the division of the two main bronchi. Structure The carina occurs at the lower end of the trachea (usually at the level of the 4th to 5th ...

. 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 A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs. The largest pulmonary artery is the ''main pulmonary artery'' or ''pulmonary trunk'' from the heart, and t ...

, 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 A bronchus is a passage or airway in the lower respiratory tract that conducts Atmosphere of Earth, air into the lungs. The first or primary bronchi pronounced (BRAN-KAI) to branch from the trachea at the Carina of trachea, carina are the right ma ...

with a specific name apart from the name of its corresponding lobe.

Name

The classification of ''eparterial'' and ''hyparterial'' is attributed to

Swiss Swiss may refer to: * the adjectival form of Switzerland * Swiss people Places * Swiss, Missouri * Swiss, North Carolina *Swiss, West Virginia * Swiss, Wisconsin Other uses *Swiss-system tournament, in various games and sports *Swiss Internation ...

anatomist Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its ...

and

anthropologist An anthropologist is a person engaged in the practice of anthropology. Anthropology is the study of aspects of humans within past and present societies. Social anthropology, cultural anthropology and philosophical anthropology study the norms and ...

Christoph Theodor Aeby Christoph Theodor Aeby (25 February 1835 – 7 July 1885) was a Swiss anatomist, anthropologist, and academic. His main scientific interest comparative anatomy and his studies were said to be facilitated by a large collection of bones, which he ass ...

, 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

External links

* - "Pleural Cavities and Lungs: The Bronchi and Their Divisions" * {{Authority control Bronchus