BLOOD VESSELS
CLASS 9 & 10 · BIOLOGY
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REMEMBERArteries Away · Veins Back
- Arteries: high pressure, thick walls
- Veins: low pressure, valves
- Capillaries: exchange with body cells
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CLASS 9 & 10 · BIOLOGYWhy do arteries have such thick walls?
Blood vessels in 25 seconds
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