Which vessels carry oxygenated blood from the lungs to the heart?

Prepare for the Clinical Medical Assistant Certification Exam with multiple-choice questions, flashcards, and explanations. Study effectively and enhance your medical assistant skills for success on the CMAC certification.

The pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the heart. When blood is oxygenated in the lungs, it enters the pulmonary veins, which transport it directly to the left atrium of the heart. This oxygen-rich blood is then pumped from the heart to the rest of the body, supplying tissues with the oxygen needed for cellular functions.

Other vessels listed in the choices serve different roles in the circulatory system. The aorta is the main artery that carries oxygenated blood away from the heart to the rest of the body but does not return blood from the lungs. The superior vena cava returns deoxygenated blood from the upper body back to the heart, and the coronary arteries supply blood specifically to the heart muscle itself, not transporting it from the lungs. Thus, the pulmonary veins are uniquely suited to the function described in the question.

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