CVS Practice Test 2025 – The All-In-One Guide to Exam Success!

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Question: 1 / 400

The right atrium receives deoxygenated blood from which three vessels?

Aorta, pulmonary veins, and vena cava

SVC, IVC, and pulmonary artery

SVC, IVC, and coronary sinus

The right atrium receives deoxygenated blood from three main vessels: the superior vena cava (SVC), the inferior vena cava (IVC), and the coronary sinus. The superior vena cava brings deoxygenated blood from the upper part of the body, while the inferior vena cava collects blood from the lower body. The coronary sinus serves as a large vein that drains blood from the heart muscle itself back into the right atrium.

This is fundamental in understanding the flow of blood within the heart. The right atrium plays a critical role in collecting all the deoxygenated blood returning from the systemic circulation before it is forwarded to the right ventricle, where it will then be pumped to the lungs for oxygenation. The other options include vessels that do not carry deoxygenated blood to the right atrium or are incorrectly included, which highlights the unique function of these three vessels in this process.

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Coronary arteries, pulmonary veins, and SVC

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