Cardiovascular System

Edit Answers
123456789101112131415161718192021222324252627282930313233
Across
  1. 3. opening between the right and left atria in an embryo and a fetus
  2. 6. red blood cells
  3. 7. Flat portion of the heart directed posteriorly and superiorly
  4. 8. vessel that carries blood away from the heart
  5. 9. Body region where the heart can be found
  6. 13. Membrane covering the heart
  7. 15. Vein that returns blood from the lower limbs and the greater part of the pelvic and abdominal organs to the right atrium
  8. 16. white blood cells
  9. 18. short trunk that receives most of the veins of the heart and empties into the right atrium
  10. 20. Two upper chambers of the heart into which veins carry blood
  11. 22. Two lower chambers on the heart that pump blood into the arteries
  12. 24. process whereby a small balloon is inflated in the aorta to increase blood flow
  13. 26. blood clotting
  14. 28. Vein that returns blood from the head and neck, upper limbs and thorax to the right atrium
  15. 29. Serous membrane covering the surface of the heart. Also called the visceral pericardium
  16. 30. atrioventricular valve between the left atrium and the left ventricle
  17. 31. the reason blood is red is because of this component
  18. 32. liquid part of blood
  19. 33. Thick middle layer of the heart, composed of cardiac muscle cells and is responsible for the ability of the heart to contract
Down
  1. 1. Rounded tip of the heart directed anteriorly and slightly inferiorly
  2. 2. large muscular ridges and columns found in the interior walls of the ventricles
  3. 4. large artery that carries blood from the left ventricle of the heart and passes through the thorax and abdomen
  4. 5. atrioventricular valve between the right atrium and the right ventricle
  5. 10. vessel that carries blood to the heart
  6. 11. thin, strong connective tissue strings that attach papillary muscles to the ventricles
  7. 12. Small pouch projecting from the superior, anterior portion of each atrium of the heart
  8. 14. slight oval depression on the right side of the septum
  9. 17. thick muscular section that separates the two ventricles
  10. 19. separates the atria from the ventricles
  11. 21. Graphic record of the heart's electric currents
  12. 23. Innermost layer of the heart
  13. 25. platelets
  14. 27. separates the two atria