1. What are blood vessels?
Blood vessels are a network of tubes that carry blood throughout the entire body.
There are 3 types of Blood Vessels:
1. Arteries
2. Veins
3. Capillaries

2. Arteries
The vessels that carry the blood away from the heart are called arteries. They carry oxygenated blood

3. Veins Veins carry blood towards the heart They carry blood that is
de-oxygenated
They have valves that
stop the backflow of blood

4. Capillaries Capillaries connect the arteries and veins
They carry both oxygenated and deoxygenated blood
They are in close contact with cells

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