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What is the pulmonary artery?

The largest and main artery of the heart

The pulmonary artery is a critical component of the cardiovascular system that specifically carries deoxygenated blood from the heart to the lungs. This function is essential for the process of gas exchange, where carbon dioxide is expelled and oxygen is absorbed. The pulmonary artery originates from the right ventricle of the heart and branches into the left and right pulmonary arteries, leading to each lung.

Choosing the largest and main artery of the heart as the pulmonary artery is not accurate, as that description refers to the aorta. The options referring to veins, such as the one that carries deoxygenated blood to the heart, and arteries that supply blood to the brain do not correctly define the pulmonary artery's role and function in the circulatory system. Thus, it is clear that the pulmonary artery's primary role is to transport deoxygenated blood to the lungs for oxygenation.

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The vein that carries deoxygenated blood to the heart

A major artery that supplies blood to the brain

The artery that transports oxygenated blood to the lungs

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