Name the blood vessel with the lowest concentration of carbon dioxide.

Pulmonary vein

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Pulmonary artery

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Inferior vena cava

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Superior vena cava

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Solution

The correct option is A
Pulmonary vein

The pulmonary vein brings oxygenated blood back from the lungs to the heart. The lungs take care of pulling out the carbon dioxide from the blood and adding more oxygen to it. Therefore, the pulmonary vein will have the highest concentration of oxygen as well as the lowest concentration of carbon dioxide.

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Similar questions

Which blood vessel does not carry any carbon dioxide ?
(a) pulmonary artery
(b) vena cava
(c) hepatic vein
(d) pulmonary vein

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