cardiovascular system

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Across
  1. 6. specific nervous tissue locates in the heart that makes itself beat without control of the nervous system
  2. 9. avoids the backflow of blood
  3. 11. tightening of the blood vessel when the blood pressure is dropping down
  4. 13. abnormal swishing sound of the heart
  5. 14. phase corresponds to the contraction of the heart
  6. 15. middle tissue of the heart and composed of specific muscle cells
Down
  1. 1. the strongest pump of the heart chambers
  2. 2. removal of excess fluid from the pericardial spaces
  3. 3. surgical repair of the valve
  4. 4. bluish discoloration of the skin indicates the hypoxemia
  5. 5. is a wall within the heart that separates the same name chamber of the heart
  6. 7. epithelial cells that line the innermost blood vessels and the heart
  7. 8. double membrane surrounding the heart
  8. 10. smallest blood vessel of the body where the exchange between blood and other tissue does
  9. 12. region where we can feel the heartbeat throughout the body