The blood vessels that deliver oxygen-poor blood from the rest of the body to the heart are veins. Veins are responsible for carrying deoxygenated blood back to the heart from various parts of the body.
Here's a breakdown of why veins are the correct answer:
1. Veins have one-way valves that help prevent blood from flowing backward, aiding in the return of blood to the heart.
2. Deoxygenated blood is transported through veins towards the heart, where it will be pumped to the lungs for oxygenation.
3. Unlike arteries, veins have thinner walls and lower blood pressure due to the nature of carrying deoxygenated blood back to the heart.
In summary, veins are the blood vessels that play a crucial role in returning oxygen-poor blood from the body's tissues and organs to the heart for reoxygenation.
