Explain briefly three major types of blood vessels in human beings? [3 MARKS]
Each point: 1 Mark
Three major types of blood vessels are
1. Arteries - which carry the blood away from the heart usually carrying, oxygenated blood.
2. Capillaries - which enable the actual exchange of water and chemicals between blood and the tissues.
3. Veins - which carry blood from the capillaries back towards the heart usually carrying, deoxygenated blood.