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In human anatomy, the bronchial arteries supply the with oxygenated blood, and nutrition. Although there is much variation, there are usually two bronchial arteries that run to the left lung, and one to the right lung, and are a vital part of the respiratory system.
The left bronchial arteries (superior and inferior) usually arise directly from the thoracic aorta. (2018). 9780323442848, Elsevier. ISBN 9780323442848
The single right bronchial artery may arise from one of the following:
Note that much of the oxygenated blood supplied by the bronchial arteries is returned via the pulmonary veins rather than the bronchial veins. As a consequence, blood returning to the left heart is slightly less oxygenated than blood found at the level of the pulmonary capillary beds.
Each bronchial artery also has a branch that supplies the esophagus.
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The bronchial arteries are typically enlarged and in chronic Cteph.
With modern surgical techniques, bronchial Anastomosis heal well without bronchial artery reconnection. Largely for this reason, bronchial artery circulation is usually sacrificed during lung transplants, instead relying on the persistence of a microcirculation (presumably arising from the deoxygenated pulmonary circulation) to provide perfusion to the airways.
of the bronchial artery may mimic . Bronchial artery embolisation (BAE) is catheter insertion into a bronchial artery to treat hemoptysis (coughing blood). (2019). 9780323544290, Elsevier. ISBN 9780323544290 (2008). 9780323048415, Mosby. ISBN 9780323048415 Most lung tumors are supplied by the bronchial artery, and they can be treated by chemoembolization (injecting chemotherapy and particles directly into the tumor-feeding artery).
The bronchial arteries and their supply of nutrients to the lungs are also attributed to the observation that an occluded (either ligated or by an embolus) pulmonal artery very rarely results in lung infarction. The bronchial arteries can maintain a supply of oxygenated blood to lung tissue.
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