Oxygen-poor blood passes through the

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Oxygen-poor blood passes through the veins.

Blood flows through three types of blood vessels namely, arteries, arterioles, capillaries, venules and veins that are distributed throughout the body. Arteries divide into arterioles, which subdivide into capillaries (means, they are branches of arteries, but not veins). The capillaries reunite to form venules, the venules collect the deoxygenated blood from the capillaries. All the veins carry blood towards the heart and the arteries carry blood away from the heart. In general, the arteries carry the oxygenated blood and the veins carry the deoxygenated blood, but exceptions are there for this generalization.

The pulmonary artery carries the deoxygenated blood away from the heart. The veins carry deoxygenated blood towards the heart, i.e. back to the heart. The oxygenation takes place in the lungs. The pulmonary vein carries the oxygenated blood back to the heart.

Nightingale answered 2 years ago

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Oxygen-poor blood passes through the

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