What Is The Difference Between Capillaries Veins And Arteries?

What Is The Difference Between Capillaries Veins And Arteries? Blood vessels flow blood throughout the body. Arteries transport blood away from the heart. Veins return blood back toward the heart. Capillaries surround body cells and tissues to deliver and absorb oxygen, nutrients, and other substances. What are the differences between veins and arteries? Arteries are