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Multiple Choice

Which type of blood vessels carry blood towards the heart?

Veins are the vessels that return blood toward the heart. In the circulatory system, blood travels away from the heart through arteries and returns through veins, with capillaries linking the two via arterioles and venules. Veins have thinner walls, larger lumens, and often valves that prevent backflow, helping blood move back to the heart even at low pressure. The return is aided by skeletal muscle contractions and pressure changes during breathing. Note that while most systemic veins carry deoxygenated blood, the pulmonary veins are an exception and bring oxygenated blood from the lungs to the heart.

Veins are the vessels that return blood toward the heart. In the circulatory system, blood travels away from the heart through arteries and returns through veins, with capillaries linking the two via arterioles and venules. Veins have thinner walls, larger lumens, and often valves that prevent backflow, helping blood move back to the heart even at low pressure. The return is aided by skeletal muscle contractions and pressure changes during breathing. Note that while most systemic veins carry deoxygenated blood, the pulmonary veins are an exception and bring oxygenated blood from the lungs to the heart.