Which statement best describes arteries?
- All carry oxygenated blood to the heart.
- All carry blood away from the heart.
- All carry blood toward the heart.
- Only large arteries are lined with endothelium.
- Only the pulmonary artery carries oxygenated blood.
Only the second statement accurately describes arteries. Arteries are blood vessels that carry away blood away from the heart.
The cardiovascular system is made up of three types of blood vessels that carry blood all over the body of an organism. The three blood vessels are the arteries, veins, and capillaries. With the exception of capillaries, blood vessels are made of three distinct layers. The capillaries, on the other hand, are only one cell layer thick.