Cardiovascular System

1234567891011121314151617
Across
  1. 2. the top of the heart is called the?
  2. 4. what part of the heart wall houses the conduction system?
  3. 6. 2/3 of the heart lie behind the left part of the ______ ?
  4. 7. what is the double-layered sac that surrounds the heart called?
  5. 8. what is the inner layer of the pericardium called?
  6. 9. what is the space between the two layers of the serous pericardium called?
  7. 13. what valve separates the left atrium and left ventricle?
  8. 14. what is the inner layer of the heart wall called?
  9. 15. what is abundent in the connective tissue of the heart?
  10. 16. the bottom of the heart is called the?
  11. 17. what is the outer layer of the heart wall called?
Down
  1. 1. what separates the electrical system of the atria and the ventricles?
  2. 3. what is the internal layer of the serous pericardium called?
  3. 5. what is the outer layer of the pericardium called?
  4. 10. what is the outer layer of the serous pericardium called?
  5. 11. what is the middle layer of the heart wall called?
  6. 12. what is the heart behind?