Question

All veins have deoxygenated blood, except

• A. Renal vein
• B. Hepatic vein
• C. Hepatic portal vein
• D. Pulmonary veins

Answer 1

Answer: (D)

Pulmonary veins

The pulmonary circulation starts by the pumping of deoxygenated blood by the right ventricle, which is carried to the lungs (through pulmonary artery), where it is oxygenated and returned to the left atrium (through the pulmonary vein). Pulmonary vein is the only vein to carry oxygenated blood.

The systemic circulation starts with the pumping of oxygenated blood by the left ventricle to the aorta, which is carried to all the body tissues and the deoxygenated blood from there is collected by the veins and returned to the right atrium.

So, Option D is correct.