Cardiovascular System Anatomy Crossword - Regular

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Across
  1. 1. (also called AV Node) found in the lower half of the right atrium, near the tricuspid valve
  2. 3. (two words) the system of blood vessels carrying the blood from the heart to the lungs and back again
  3. 6. carries blood away from the heart to some part of the body
  4. 7. (two words) veins that bring blood from the head back to the heart via the superior vena cava
  5. 8. (two words) the system of blood vessels carrying the blood from the heart to all parts of the body (except the lungs) and back again
  6. 10. (two words) conducting fibers that carry the cardiac impulse from the left and right bundle branches to the heart muscle cells in the ventricles
  7. 14. a network of microscopic blood vessels that connect arteries to veins
  8. 16. an air sac in the lungs
  9. 17. one of the two upper chambers of the heart
  10. 18. (two words) one of the two arteries (left and right) that carries blood to the heart itself
  11. 19. returns blood to the heart from somewhere in the body
  12. 21. a connection between two blood vessels that had previously branched apart from each other
Down
  1. 2. an artery that supplies the head (brain) and neck with oxygenated blood
  2. 3. (two words) carry deoxygenated blood from the right ventricle of the heart to the lungs. These are the only arteries that carry deoxygenated blood.
  3. 4. (three words) is the half-moon shaped valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps
  4. 5. one of the lower chambers of the heart that pumps blood to the body
  5. 9. (two words) one of the two arteries (left and right) that carries blood to the heart itself
  6. 11. (two words) extension of the Bundle of His that carry the electrical impulse down the septum dividing the ventricles to the apex of the heart and then to the right and left ventricles
  7. 12. (two words) also called the SA Node, a group of cells found in the posterior wall of the right atrium, near the entrance of the superior vena cava that establishes the heart rate and initiates the impulse causing heart contraction
  8. 13. a structure inside the heart at the exit of each chamber that prevents backflow of blood when the heart contracts
  9. 15. the connection between the AV node in the right atrium and the ventricles. Also called the Bundle of His
  10. 20. the straw-colored liquid part of blood in which the blood cells are normally suspended