Bronchial circulation

It is complementary to the pulmonary circulation that brings deoxygenated blood to the lungs and carries oxygenated blood away from them in order to oxygenate the rest of the body.

In the bronchial circulation, blood goes through the following steps: Blood reaches from the pulmonary circulation into the lungs for gas exchange to oxygenate the rest of the body tissues.

But bronchial circulation supplies fully oxygenated arterial blood to the lung tissues themselves.

This blood supplies the bronchi and the pleurae to meet their nutritional requirements.

[citation needed] Because of the dual blood supply to the lungs from both the bronchial and the pulmonary circulation, this tissue is more resistant to infarction.