Cardiovascular System Crossword

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Across
  1. 3. Regulates the flow of blood between the right ventricle and the pulmonary arteries
  2. 10. Receives deoxygenated blood from the cephalic and thoracic regions
  3. 12. Tiny vessel responsible for providing oxygen and nutrients to tissues, and taking CO2 and waste away from the tissues.
  4. 14. The lower chamber of the heart that contains deoxygenated blood
  5. 16. Large vessels that carry oxygenated blood AWAY from the heart.
  6. 19. Regulates the flow of blood between the left atrium and left ventricle
  7. 23. The inner most layer of the heart that lines all chambers and valves
  8. 25. A drop in pressure due to the relaxation of the heart as it is filling with blood.
  9. 26. The movement of blood from the heart through blood vessels to the rest of the body and back to the heart
  10. 27. Transports oxygenated blood to the whole body
  11. 28. Cardiac pacemaker that regulates the contraction of the atria.
  12. 29. Type of granulocyte that fights parasitic infections.
  13. 30. The upper chamber of the heart that contains oxygenated blood
  14. 32. Transports deoxygenated blood from right ventricle to lungs
  15. 35. The movement of blood between the heart and the lungs
  16. 37. The lower chamber of the heart that contains oxygenated blood
  17. 40. ECG wave(s) that occurs when the AV node depolarizes both atria causing them to contract.
  18. 42. The number of times the heart beats per minute.
Down
  1. 1. Transports oxygenated blood from lungs to the left atrium
  2. 2. Type of granulocyte that uses phagocytosis to ingest and destroy pathogens.
  3. 4. Small vessel that takes CO2 and waste away from the capillary bed.
  4. 5. Small vessel that transports oxygenated blood into the capillary bed.
  5. 6. The fluid matrix that makes up 55% of blood composition.
  6. 7. Regulates the flow of blood between the right atrium and right ventricle
  7. 8. Large vessel that transports deoxygenated blood back to the heart.
  8. 9. Extensions of the bundle branches that are embedded in the ventricles.
  9. 11. The upper chamber of the heart that contains deoxygenated blood
  10. 13. The middle layer of heart tissue that contains the muscular part of the heart.
  11. 15. Receives deoxygenated blood from the rest of the body
  12. 17. Type of granulocyte that responds to allergens by releasing histamine.
  13. 18. The sac (ziplock bag) that encloses the heart to provide moisture and protection.
  14. 20. The amount of blood pumped by each ventricle in ONE minute.
  15. 21. ECG wave(s) that occurs as atria repolarize, and ventricles depolarize causing a ventricular contraction.
  16. 22. The amount of pressure exerted on the arteries during systole and diastole.
  17. 24. Type of agranulocyte that can transform into a macrophage and ingest multiple pathogens.
  18. 31. Pressure exerted by the contraction of the heart muscle.
  19. 33. Specialized nerve fibers that receive signals from the pacemaker and transfer the electrical signal to the AV branches.
  20. 34. Red blood cell responsible for transporting oxygen to the body's tissues.
  21. 36. Regulates the flow of blood between the left ventricle and the aorta
  22. 38. ECG wave(s) that appears when ventricles become repolarized, signaling the end of a heart beat.
  23. 39. The outer most layer of the heart.
  24. 41. Tiny cell fragments (platelets) that are responsible for clotting damaged blood vessels to prevent blood loss.