The circulatory system
- Created by: emews
- Created on: 04-11-17 10:22
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- The circulatory system
- Consists of:
- A system of tubes
- A pump
- Valves
- arteries:
- Carry blood away from the heart
- have thick muscular walls
- Have small passageways for blood
- contain blood under high pressure
- veins:
- carry blood to the heart
- Have larger passageways for blood
- contain blood under low pressure
- have valves to prevent blood flowing backwards
- capillaries
- Found in the muscles and lungs
- One cell thick
- very low blood pressure
- Untitled
- Consists of:
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