Extra Credit

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Across
  1. 2. upper arm bone
  2. 6. provide a resting ground for muscles and protection of vital organs
  3. 7. thigh bone/upper leg bone
  4. 8. Blood vessels that carry blood towards/back to the heart
  5. 10. A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together.
  6. 12. muscle Involuntary muscle tissue found only in the heart.
  7. 14. cage protects the heart and lungs
  8. 15. Connect muscle to bone
  9. 16. vessels arteries, veins, capillaries
  10. 17. carry blood away from the heart
  11. 20. Large, flat muscle at the bottom of the chest cavity that helps with breathing
  12. 21. poor blood enters the heart from the body and goes out to the lungs
  13. 23. System enables movement of the body and internal organs
  14. 24. physical activity increases, what else increases? blood flow to the muscles to deliver oxygen
  15. 26. rich blood enters the heart from the lungs and goes out to the body
Down
  1. 1. Main organs of the respiratory system
  2. 2. A hollow, muscular organ that pumps blood throughout the body.
  3. 3. system Protects and supports body organs and provides a framework the muscles use to support movement. Made up of bones and joints
  4. 4. system Brings oxygen into the body. Gets rid of carbon dioxide.
  5. 5. Smallest blood vessels
  6. 9. system Transports oxygen, waste, nutrients, hormones, heat, etc... around the body
  7. 11. windpipe/takes gases to and from lungs
  8. 13. muscle A muscle that is attached to the bones of the skeleton and provides the force that moves the bones.
  9. 18. skull
  10. 19. muscle Involuntary muscle found inside many internal organs of the body
  11. 22. passages for air
  12. 25. Connect bone to bone