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Right Bronchial Artery
Cardiovascular System

Right Bronchial Artery

Arteria bronchialis dextra

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Quick Facts

Origin: Third posterior intercostal artery.

Course: Along the right tracheobronchial tree.

Branches: Esophageal branch.

Supplied Structures: Trachea, right bronchus, lung parenchyma, lymph nodes, visceral pleura.

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Origin

The right bronchial artery most commonly arises from the proximal end of the third right posterior intercostal artery (Standring, 2016).

Course

From its origin, the right bronchial artery travels to the posterior surface of the right main bronchus, travels along its surface, then follows the same branching pattern as the right bronchial tree. The right bronchial artery terminates around the level of the respiratory bronchioles.

It is important to note that bronchial vessels are a part of the systemic circulation, not the pulmonary circulation. They are not involved in the gas exchange that takes place at the alveoli between the blood and inspired air, although some distal bronchial vessels do anastomose with pulmonary vessels.

Branches

It may give off an esophageal branch.

Supplied Structures

The right bronchial artery provides an arterial supply to the structures of the right bronchial tree, as well as the distal trachea, adjoining lymph nodes, and visceral pleura.

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edition edn.: Elsevier Limited.

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Right Bronchial Artery

ScienceDirect image

Right bronchial artery often arises from medial to anteromedial aorta whereas left bronchial artery generally arises anteriorly

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