Question

Which of the following is a TRUE about arteries and veins?

one has smooth muscle, the other doesn't
O one has an endothelium, the other has connective tissue
O one has valves, the other doesn't
one carries blood, the other carries lymph

Answer 1

Arteries and veins have some distinct differences. Arteries have smooth muscle, while veins do not. Veins have valves, while arteries do not. Arteries carry blood, while veins carry deoxygenated blood.

Step-by-step explanation:

Arteries and veins are both types of blood vessels that play crucial roles in the circulatory system. While both have similar structures and functions, there are some key differences between them.

1. One has smooth muscle, the other doesn't: Arteries have a thick layer of smooth muscle in their walls that allows them to constrict and dilate to regulate blood flow. Veins, on the other hand, have thinner walls and do not contain smooth muscle.
2. One has valves, the other doesn't: Veins have valves, which are flap-like structures that prevent blood from flowing backward. These valves help maintain the one-way flow of blood towards the heart. Arteries do not have valves.
3. One carries blood, the other carries lymph: Arteries carry oxygenated blood away from the heart to various parts of the body, while veins carry deoxygenated blood back to the heart. Neither arteries nor veins carry lymph, which is the fluid found in the lymphatic system.

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