Across
- 2. carry blood and nutrients away from the heart
- 4. when the flow of blood becomes blocked by a blood clot
- 7. allow the blood to flow in one direction
- 9. occurs when plaque builds up in the arteries
- 10. A muscular organ that pumps blood through arteries, veins and capillaries
Down
- 1. connect arteries and veins
- 3. helps the lungs move up and down.
- 5. tiny hairs that protect your airways
- 6. carry blood and nutrients to the heart
- 8. a disorder that makes it difficult to breathe