Oxygen saturation is higher in the venous system than in the arterial system, making blood appear darker red.

Question

Quizplus · Accepted Answer

Oxygen saturation is actually higher in the arterial system than in the venous system. This is because oxygenated blood is pumped from the lungs to the arteries, which then transport it to the body's tissues. As the oxygen is used up, the deoxygenated blood returns to the heart through the veins. Therefore, arterial blood appears bright red, while venous blood appears darker in color.

Oxygen Saturation Is Higher in the Venous System Than in the Arterial