Heart crossword puzzle

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Across
  1. 5. Takes blood away from the left ventricle to the rest of the body
  2. 7. conduction fibers that conduct impulses through the ventricles of the heart
  3. 8. Separates it into a right half from the left
  4. 12. the left ventricle does not close properly
  5. 14. sends out an electrical impulse that begins and regulates the heart rate
  6. 15. dense network of fibers of conduction at the junction of the superior vena cava and right atrium
  7. 16. The inner lining is smooth tissue
  8. 17. This bundle divides into a right and left branch
  9. 18. A large venous channel located on the posterior wall of the heart
  10. 19. Takes blood away from the right ventricle
  11. 20. When blood flow to heart is blocked or stop beating
  12. 22. The left chamber of the heart
  13. 23. made up of three half-moon-shaped cups, located between the junction of the aorta and the left ventricle of the heart
Down
  1. 1. atrioventricular valve between the left atrium and left ventricle; allows blood to flow from left atrium to left ventricle
  2. 2. a test done to evaluate the right and left ventricles.
  3. 3. One of the lower chambers of the heart
  4. 4. conducting fibers in the septum; also known as the bundle of His
  5. 6. heart valve at the opening of the pulmonary artery that allows blood to flow from the right ventricle into the pulmonary artery
  6. 9. the large venous blood vessels that bring deoxygenated blood
  7. 10. Makes up major portion of the heart
  8. 11. A double layer of serous and fibrous tissue
  9. 13. small mass of interwoven conducting tissue located between the atria and ventricles
  10. 21. valve between right atrium and right ventricle