Cardiovascular System Vocabulary

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Across
  1. 4. Artery that carries oxygen-poor blood from the heart to the lungs.
  2. 5. Small vein.
  3. 6. Recording of electrical activity of the heart.
  4. 8. Gas that enters the blood through the lungs.
  5. 9. One of upper chambers of the heart.
  6. 10. Smallest blood vessel.
  7. 12. Lower part of the heart.
  8. 13. Relaxation phase of a heartbeat.
  9. 14. Muscular middle layer of the heart.
Down
  1. 1. Type of circulation or flow of blood to the heart and back.
  2. 2. Arteries located on either side of the neck.
  3. 3. Abnormal swishing sound from improper closure of heart valves.
  4. 6. Innermost lining of blood vessels.
  5. 7. Largest artery in the body.
  6. 11. Artery that carries oxygen-rich blood to the heart.