Puzzles assignment part 1

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Across
  1. 2. blood vessel.
  2. 4. like membrane surrounding the heart.
  3. 6. of the heart.
  4. 8. of two upper chambers of the heart.
  5. 10. artery in the body.
  6. 11. that is oxygen poor.
  7. 12. to measure blood pressure.
Down
  1. 1. of the heart as felt through the walls of the arteries.
  2. 3. layer of the heart.
  3. 4. artery.
  4. 5. phase of the heartbeat.
  5. 7. lining of blood vessels.
  6. 9. carrying oxygen poor blood from the heart to the lungs.
  7. 12. lining of the heart.