Circulatory and Respiratory system

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