Assesment 8

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Across
  1. 4. Part of the electrical control system of the heart that coordinates the top of the heart
  2. 5. Part of the cardiovascular system which carries oxygenated blood away from the heart to the body
  3. 6. The rhythmic contraction (systole) and relaxation (diastole) of the chambers of the heart
  4. 7. The dividing wall between the right and left sides of the heart
  5. 9. A vein that carries oxygenated blood from the lungs to the left atrium of the heart
  6. 11. Contraction of the heart chambers
  7. 13. Simpler system that exists in vertebrates
  8. 15. Blood with oxygen
  9. 16. It is a transthoracic interpretation of the electrical activity of the heart over a period of time
  10. 18. It is the rapid, irregular, and unsynchronized contraction of muscle fibers
  11. 19. Two large veins that carry blood with low levels of oxygen
  12. 21. Blood without oxygen
  13. 23. The chamber of the heart that receives blood from an atrium and pumps it to the arteries
Down
  1. 1. The tissue that causes the ventricles to contract simultaneously from the bottom up
  2. 2. The upper chamber of each half of the heart
  3. 3. The system that carrys blood and oxygen around our body
  4. 5. This is a impulse-generating (pacemaker) tissue located in the right atrium of the heart.
  5. 8. Relaxation of the heart chambers
  6. 10. Valves through which blood flows from the atria to the ventricles
  7. 12. Half portion of the cardiovascular system
  8. 13. Prevents blood from flowing back into the ventricles
  9. 14. The artery that branches from the aorta to supply blood to the heart
  10. 17. The muscle tissue of the heart; adapted to continued rhythmic contraction
  11. 20. Narrowing of the aorta
  12. 22. Tiny air-filled sacs arranged in clusters in the lungs