Skeletal, Muscular, and Nervous Systems

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Across
  1. 1. The main function of the muscular system.
  2. 4. The softer interior of bone that contains many tiny holes.
  3. 5. An automatic movement in response to a signal
  4. 7. The type of muscle tissue that helps move materials through the body and can be found in the blood vessels and intestines.
  5. 8. Where reflex signals are processed for a quick reaction.
  6. 10. The part of the nervous system that includes the nerves.
  7. 14. Where two or more bones meet, allowing movement.
  8. 15. Firm and flexible connective tissue that provides padding in joints and facilitates movement.
  9. 18. Muscle tissue that continually contracts and relaxes to pump blood throughout the body.
  10. 19. The tail of a nerve cell that can be up to a meter long.
  11. 20. The name for a nerve cell.
  12. 21. The hard outer layer of bone.
  13. 22. The mineral stored inside our bones.
  14. 23. The connective tissue that connects bone to bone.
Down
  1. 2. An action of the nervous system that requires thought.
  2. 3. An action of the nervous system that does not require thought.
  3. 6. Connective tissue that connects muscle to bone.
  4. 9. The skeletal system provides ______________ to many soft, internal organs.
  5. 11. The type of muscle that is connected to our bones, is visible on a person's body, and helps lift heavy objects.
  6. 12. The main function of the central nervous system.
  7. 13. The part of the nervous system that includes the brain and the spinal cord.
  8. 16. The organ of the central nervous system where most nerve signals are processed.
  9. 17. The spongy substance inside bones that produces blood cells