Heart Crossword

12345678910111213141516171819202122232425262728293031323334353637383940
Across
  1. 4. transmit the electrical signal down the septum.
  2. 5. sends a signal for the rest of the heart when to contract.
  3. 6. have a visibly smooth appearance.
  4. 9. prevents back flow of blood back to the right atrium.
  5. 18. have noticeably grainy appearance.
  6. 19. pumps blood from the lungs into the left ventricle.
  7. 23. complement poke holes in red blood cells causing them to burst and release hemoglobin.
  8. 27. prevents back flow of blood back into the left ventricle and has three flaps.
  9. 29. branch off from the aorta as it leaves the heart.
  10. 31. is the part of the aorta that heads down.
  11. 32. an involuntary contraction of damaged arteries or arterioles.
  12. 33. are involved in allergic reactions.
  13. 34. can bind readily to oxygen and carbon dioxide.
  14. 37. is where all the veins from the head merge together.
  15. 39. is a hairpin loop in the aorta that wraps around the pulmonary veins and heads downwards.
  16. 40. pumps blood to the body.
Down
  1. 1. develop antibodies and attack bacteria.
  2. 2. prevents back flow of blood back into the right ventricle.
  3. 3. when platelets stick to each other release a mixture of chemicals.
  4. 7. cause the ventricles contract.
  5. 8. prevents back flow of blood into the left atrium.
  6. 10. caused by a missing clotting factor.
  7. 11. carries a signal from the pacemaker to the ventricles.
  8. 12. is where all the veins from the lower merge together.
  9. 13. a series of events that cause the blood to thicken into a gel-like consistency.
  10. 14. carry oxygen rich blood to the heart from the lungs.
  11. 15. are named for rhesus monkeys.
  12. 16. pumps blood to the right ventricle.
  13. 17. help the blood to clot at wounds.
  14. 20. carry oxygen poor blood back to the lungs.
  15. 21. can consume bacteria by phagocytosis.
  16. 22. attack and destroy invading pathogens.
  17. 24. in the bone marrow make blood cells.
  18. 25. increase allergic and inflammatory responses.
  19. 26. carry oxygen and carbon dioxide.
  20. 28. can consume bacteria by phagocytosis.
  21. 30. pumps blood to the lungs.
  22. 35. the main artery in the body.
  23. 36. is the wall that separates the ventricles.
  24. 38. the bottom of the heart that forms a point.