Cardiovascular

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Across
  1. 2. Nervous tissue in the right atrium that begins a heart beat
  2. 5. Takes blood to all parts of the body and away from the heart
  3. 6. Use of sound waves to produce a picture of the heart
  4. 8. Structure in the heart that open and close to control blood flow
  5. 10. Thin walls that lets materials pass to and from the bloodstream
  6. 13. Where the inner lining of the wall is inflamed
  7. 14. Gas that moves from lungs to heart and is pumped to all body cells
Down
  1. 1. Caused by the heart valves closing incorrectly
  2. 2. The felling of a heart beat through the walls of arteries
  3. 3. Contrast is injected and a picture is taken of blood vessels
  4. 4. Membrane surrounding the heart, double-layered
  5. 7. Vessel that carries blood from tissue and lungs to the heart.
  6. 9. An artery that is small
  7. 11. Phase of the heart where it is contracting
  8. 12. Phase where the heart is relaxed