Right pulmonary artery

The pulmonary artery begins at the base of the heart's right ventricle. It is approximately 3 cm in diameter and 5 cm in length and then splits into the left pulmonary artery and the right pulmonary artery. These arteries then deliver blood (de-oxygenated) to each corresponding lung. This is one of the only arteries that carry deoxygenated blood; the other location in the body is in the fetus, where the umbilical arteries are. A variety of lung diseases can cause pulmonary hypertension, which is when the blood pressure increases in the pulmonary artery. Pulmonary hypertension can also be a consequence or a cause -- such as a consequence from a heart disease or a cause of right-ventricular heart failure. Other consequences that it can be caused by include scleroderma and pulmonary embolism. Scleroderma is defined as a chronic disease that primarily affects the skin and is a systemic autoimmune condition. A pulmonary embolism occurs when the main artery, whether it is the left or right pulmonary artery or one of its branches, is blocked by a substance from another place in the body.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Right pulmonary artery

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