Body Systems

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Across
  1. 4. → Automatic response to stimulus.
  2. 5. → Receives signals toward cell body.
  3. 6. System
  4. 7. → Cell that carries messages.
  5. 8. → Soft tissue in bones making blood cells.
  6. 10. → Gap where neurons pass messages.
  7. 12. → Connects muscle to bone.
  8. 17. → Connects bone to bone.
  9. 18. → Hard tissue that forms the skeleton.
  10. 19. → Where two or more bones meet.
  11. 20. → Sends signals away from cell body.
  12. 21. → Protects the brain.
  13. 22. → Control center of the body.
  14. 25. muscle → Involuntary heart muscle.
  15. 27. muscle → Involuntary muscles in organs.
  16. 28. → Protect heart and lungs.
  17. 29. Nervous System (CNS) → Brain and spinal cord.
  18. 30. → Bends a joint.
  19. 31. muscle → Voluntary muscles attached to bones.
Down
  1. 1. → Small bones making up the spine.
  2. 2. → Straightens a joint.
  3. 3. Nervous System (PNS) → Nerves branching from CNS.
  4. 6. → Bundle of neurons.
  5. 9. muscle → Muscle you control.
  6. 11. → Framework of bones and cartilage.
  7. 13. muscle → Muscle that moves automatically.
  8. 14. → Flexible tissue covering bone ends.
  9. 15. cord → Nerve bundle down the back.
  10. 16. → Muscle that works opposite another.
  11. 23. → Electrical message in neuron.
  12. 24. → Tissue that contracts for movement.
  13. 26. → To tighten a muscle.