All about the heart and blood vessels!
The heart
- Created by: smudgeacorn
- Created on: 04-04-14 17:00
Other questions in this quiz
2. Do veins contain valves?
- Yes
- No
3. What does the vena cava do?
- bring oxygenated blood back from the lungs
- bring deoxygenated blood back from the body
- pump deoxygenated blood to the lungs
- pump oxygenated blood to the body
4. Why are capillary walls (endothelium) only one cell thick?
- To speed up diffusion
- To make them smaller
5. If there is higher pressure behind a valve, is it forced open or shut?
- open
- shut
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