Algonquin College Health Program Assessment (AC-HPAT) Practice Exam

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What is the primary function of the pulmonary artery?

To carry oxygenated blood to the body
To transport deoxygenated blood to the lungs
To return blood to the heart from the body
To provide blood to the heart muscle

The correct answer is: To transport deoxygenated blood to the lungs

The primary function of the pulmonary artery is to transport deoxygenated blood to the lungs. This is a crucial component of the circulatory system, specifically part of the process known as pulmonary circulation. In this process, the right side of the heart pumps deoxygenated blood through the pulmonary arteries to the lungs, where carbon dioxide is exchanged for oxygen. This step is essential for the reoxygenation of blood, allowing the body to receive fresh oxygen, which is vital for cellular function and overall health. The pulmonary artery is unique because, unlike most arteries that carry oxygenated blood, it is responsible for transporting blood that is low in oxygen back to the lungs for rejuvenation. Understanding this role is fundamental to comprehending how the cardiovascular and respiratory systems work together to maintain oxygen levels in the body.