The pulmonary artery: which is its function?

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Study for the Nassau County EMT Test. Prepare with flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready for your exam!

Multiple Choice

The pulmonary artery: which is its function?

Explanation:
The key idea here is that the pulmonary artery moves blood from the heart to the lungs for gas exchange. It carries deoxygenated blood away from the right side of the heart (the right ventricle) to the lungs, where it picks up oxygen. After this, the oxygenated blood returns to the heart through the pulmonary veins and enters the left atrium. So the pulmonary arteries are about getting blood to the lungs to be oxygenated, not about returning blood to the heart or delivering nutrients. Nutrients reach lung tissue via other vessels (bronchial arteries), and returning oxygenated blood to the heart is the job of the pulmonary veins, not the arteries.

The key idea here is that the pulmonary artery moves blood from the heart to the lungs for gas exchange. It carries deoxygenated blood away from the right side of the heart (the right ventricle) to the lungs, where it picks up oxygen. After this, the oxygenated blood returns to the heart through the pulmonary veins and enters the left atrium. So the pulmonary arteries are about getting blood to the lungs to be oxygenated, not about returning blood to the heart or delivering nutrients. Nutrients reach lung tissue via other vessels (bronchial arteries), and returning oxygenated blood to the heart is the job of the pulmonary veins, not the arteries.

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