What is transported through capillaries, arteries, and veins?

What is transported through capillaries, arteries, and veins?

• A. Lymph
• B. Blood
• C. Oxygen
• D. Hormones

Answer: (B)

The main idea is that arteries, capillaries, and veins are all parts of the circulatory system that move blood. Blood is the fluid that travels through these vessels, delivering oxygen and nutrients to tissues and carrying waste products away. Arteries carry blood away from the heart, often rich in oxygen; capillaries are tiny exchange vessels where gases, nutrients, and wastes are exchanged with tissues; veins return blood back toward the heart. Lymph travels in a separate set of lymphatic vessels, not the blood vessels listed. While oxygen is carried by blood (primarily by red blood cells) and hormones travel in the blood plasma, the substance that flows through arteries, capillaries, and veins is blood itself.

The main idea is that arteries, capillaries, and veins are all parts of the circulatory system that move blood. Blood is the fluid that travels through these vessels, delivering oxygen and nutrients to tissues and carrying waste products away. Arteries carry blood away from the heart, often rich in oxygen; capillaries are tiny exchange vessels where gases, nutrients, and wastes are exchanged with tissues; veins return blood back toward the heart. Lymph travels in a separate set of lymphatic vessels, not the blood vessels listed. While oxygen is carried by blood (primarily by red blood cells) and hormones travel in the blood plasma, the substance that flows through arteries, capillaries, and veins is blood itself.