Oh My Heart

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Across
  1. 3. Largest type of blood vessel
  2. 4. Largest artery in the body.
  3. 7. Partition or wall dividing a cavity
  4. 9. Beat of the heart as felt through the walls of the arteries.
  5. 12. One of two upper chambers of the heart.
  6. 13. Largest vein in the body.
  7. 15. Thin-walled vessel that carries blood from body tissues and lungs back to the heart
Down
  1. 1. One of two lower chambers of the heart.
  2. 2. Muscular middle layer of the heart.
  3. 5. Contraction phase of the heartbeat
  4. 6. Small artery.
  5. 8. Abnormal swishing sound caused by improper closure of the heart valve
  6. 10. Double-layered membrane surrounding the heart.
  7. 11. Structure in veins or in the heart that temporarily closes an opening
  8. 14. Small vein.