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