Heart

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Across
  1. 3. this sound caused by leaky valves
  2. 4. valve between Right atrium and ventricle
  3. 7. muscle in the heart
  4. 9. tiny blood vessels
  5. 11. arteries carry this with blood to the body
  6. 12. blood carrying vessels with valves
  7. 13. carries oxygen rich blood to the blood
  8. 14. this blood has low oxygen levels
Down
  1. 1. receiving chambers for blood from out in the body
  2. 2. valve between left atrium and ventricle
  3. 5. blood flows into this, past the aortic valve
  4. 6. this vena cava brings blood from upper body
  5. 8. keeps blood from back flowing
  6. 10. membrane around heart
  7. 12. chambers that holds blood about leave the heart