Which side of the heart contains blood high in oxygen and low in carbon dioxide?

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Multiple Choice

Which side of the heart contains blood high in oxygen and low in carbon dioxide?

Explanation:
Oxygenated blood returns from the lungs to the heart and stays on the left side. After gas exchange in the lungs, the blood is high in oxygen and low in carbon dioxide, and it travels through the pulmonary veins into the left atrium, then is pumped by the left ventricle into the systemic circulation. The right side, by contrast, handles blood that’s been depleted of oxygen after circulating through the body, so it’s lower in oxygen and higher in carbon dioxide as it moves to the lungs for reoxygenation. Therefore, the left side of the heart contains blood high in oxygen and low in carbon dioxide.

Oxygenated blood returns from the lungs to the heart and stays on the left side. After gas exchange in the lungs, the blood is high in oxygen and low in carbon dioxide, and it travels through the pulmonary veins into the left atrium, then is pumped by the left ventricle into the systemic circulation. The right side, by contrast, handles blood that’s been depleted of oxygen after circulating through the body, so it’s lower in oxygen and higher in carbon dioxide as it moves to the lungs for reoxygenation. Therefore, the left side of the heart contains blood high in oxygen and low in carbon dioxide.

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