Body Systems Review Crossword

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Across
  1. 3. a lower chamber of the heart
  2. 5. cell parts that cause blood clotting
  3. 7. muscle that assists the lungs with breathing
  4. 8. where two or more bones meet
  5. 14. makes blood cells
  6. 15. system of the body that has 3 lines of defense to eliminate pathogens and maintain homeostasis
  7. 18. system of the body that allows for involuntary movement (like digestion) and voluntary movement (like running) and includes skeletal, smooth and cardiac muscles
  8. 20. inflate when one inhales and deflate when exhaling
  9. 21. large blood cell that fights diseases and pathogens
  10. 24. system of the body that allows for gas exchange with the environment
  11. 26. tiny blood vessels that connect arteries and veins
  12. 27. first line of defense that rids the body of pathogens by sneezing or coughing
  13. 29. system of the body that breaks down food and absorbs nutrients
  14. 30. an upper chamber of the heart
  15. 33. keeps food from entering the airways
  16. 34. blood vessels that carry blood back to the heart
  17. 35. system of the body that gets rid of liquid and gas waste materials
  18. 36. the smallest unit of life and the least complex level of organization
  19. 37. the passageway for air
  20. 39. largest organ, excretes waste and protects the body
  21. 40. a body structure made of different kinds of tissue that work together
  22. 41. similar cells that are grouped together performing the same function
  23. 42. millions of these tiny filters in the kidneys
  24. 43. uses mechanical and chemical digestion to break down food
  25. 46. blood vessel that carries blood away from the heart
  26. 48. connects bone to bone
  27. 49. muscle type that is voluntary and allows for movement
  28. 50. control center for the body
  29. 51. a group of organs that work together to perform major functions
  30. 52. liquid tissue that contains plasma and blood cells
Down
  1. 1. tiny sacs in the lungs, where gas exchange happens
  2. 2. system of the body that moves blood and necessary materials for survival
  3. 4. flexible material between bones that can absorb shock, limit friction and also provide structure
  4. 6. a bundle of nerve tissue that connects the brain to the body
  5. 9. filter blood using nephrons
  6. 10. makes bile for digestion and urea for excretory system, and is the largest internal organ
  7. 11. where digestion begins
  8. 12. a response that initiates fever and the widening of blood vessels (swelling)
  9. 13. where 90% of digestion and absorption of nutrients takes place
  10. 16. muscle type that is involuntary and can become tired over time
  11. 17. system of the body that sends and receives messages, gathers / processes information about the environment and help maintain homeostasis
  12. 19. the condition in which an organism’s internal environment is kept stable
  13. 22. holds urine until evacuated from body
  14. 23. where water is reabsorbed, and all that is left is solid waste (feces)
  15. 25. type of digestion that uses enzymes and acids to break down food
  16. 28. cells that make up nerves
  17. 31. connects muscle to bone
  18. 32. type of digestion that physically breaks down food
  19. 38. muscle type that is involuntary and never gets tired
  20. 44. system of the body that provides support, protection of organs, aids in movement, and makes blood cells
  21. 45. the muscle that pumps blood throughout the body
  22. 47. type of blood cell that transports oxygen, nutrients and waste materials