Heart of the Matter

123456789101112131415
Across
  1. 5. Which is "stronger"... arteries or veins?
  2. 8. Number of chambers in the heart.
  3. 9. Enlarged heart.
  4. 10. Thickest layer of the heart wall.
  5. 11. The length of all of these is 60,000 miles.
  6. 12. Wall that separates the two upper chambers.
  7. 15. Layer unique to arteries.
Down
  1. 1. Excessive amount of cholesterol in the blood.
  2. 2. Arm cuff and hand bulb used for measuring blood pressure.
  3. 3. The pacemaker of the heart.
  4. 4. The mitral valve is also known as the ___ valve.
  5. 6. You actually hear (not see) the sounds of the heart with this instrument.
  6. 7. Expression the book used to describe the heart sounds (without hyphen).
  7. 13. Prevents backflow of blood in the veins and heart.
  8. 14. Oxygen-depleted blood enters this side of the heart.