Lizzy Crossword

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Across
  1. 4. small vein
  2. 6. Instrument to measure blood pressure
  3. 9. pertaining to the atrium
  4. 11. Double-layered membrane surrounding the heart.
  5. 12. Small artery.
  6. 13. Contraction phase of the heartbeat
  7. 14. Beat of the heart as felt through the walls of the arteries.
Down
  1. 1. Muscular middle layer of the heart
  2. 2. Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells
  3. 3. pertaining to the veins
  4. 5. One of two lower chambers of the heart.
  5. 6. Partition or wall dividing a cavity
  6. 7. pertaining to the arm
  7. 8. Smallest type of blood vessel. Materials pass to and from the bloodstream through the thin capillary walls.
  8. 10. Largest artery in the body