Final answer:
Arteries, veins, and capillaries are the three major types of blood vessels in the body. Arteries carry oxygenated blood away from the heart, veins bring deoxygenated blood back to the heart, and capillaries allow for the exchange of nutrients and waste products with body tissues.
Step-by-step explanation:
Arteries, veins, and capillaries are the three major types of blood vessels in the body.
Arteries carry oxygenated blood away from the heart to supply oxygen and nutrients to various regions of the body. They branch into arterioles and then into capillaries.
Veins bring deoxygenated blood back to the heart from different regions. They connect to venules and then to larger veins before returning blood to the heart.
Capillaries are narrow vessels that connect arterioles and venules. They allow for the exchange of oxygen, nutrients, and waste products with body tissues.