Heart

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