Cardiovascular system anatomy and physiology

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Across
  1. 2. Nodes that play a role in regulating heart rhythm
  2. 6. Fibers that send electrical signals quickly to the right and left ventricles of the heart
  3. 9. relaxation phase of the heart when the heart refills with blood
  4. 11. large chambers in the heart that pump blood throughout the body
  5. 12. small blood vessels that connect arteries and veins
  6. 13. the right and left upper atria are separated by a septum
  7. 16. Increase in heart rate beyond 100 beats
  8. 18. the layer of heart muscle that receives blood from the coronary arteries
  9. 19. blood vessels that carry blood from the heart to the rest of the body
  10. 20. the covering of the heart that is attached to the surface of the heart
Down
  1. 1. the inner layer of the heart that lines the heart chambers and heart valves
  2. 3. the right and left ventricles are separated by a septum
  3. 4. the outer layer of the heart that protects the heart
  4. 5. blood vessels that carry blood from throughout the body to the heart
  5. 7. record the electrical activity that accompanies atrial and ventricular contractions of the heart
  6. 8. largest blood vessel in the body
  7. 10. heart contraction phase when blood is pumped into the arteries
  8. 14. traditional heart sound picture
  9. 15. Abnormal or unnatural heart sounds
  10. 17. small chambers in the heart that receive blood from the veins