Cardiovascular System

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Across
  1. 1. One of two upper Chambers of the heart
  2. 8. Beat of the heart as felt through the walls of the arteries
  3. 9. Relaxation state of the heartbeat.
  4. 10. Contraction phase of the heartbeat.
  5. 11. Small artery.
  6. 14. Largest type of blood vessel; carries blood away from the heart to all parts of the body.
  7. 15. Record of the electrical activity of the heart
  8. 16. Instrument to measure blood pressure.
Down
  1. 2. Muscular middle layer of the heart
  2. 3. Smallest type of blood vessel
  3. 4. Largest artery in the body
  4. 5. One of two lower chambers of the heart.
  5. 6. Largest vein in the body.
  6. 7. Small vein.
  7. 12. Innermost lining of blood vessel.
  8. 13. Abnormal swishing sound caused by improper closure of the heart valves