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Left Pulmonary Artery

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Dec 14, 2016

The left pulmonary artery is also known as the left branch of the pulmonary artery. It supplies blood to the left lung; it runs down to the root of that lung and from there it branches out into two separate arteries. These smaller arteries each transport blood to one of the lung’s left lobes.