Coordinated Body Systems Review

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Across
  1. 4. chemical messengers
  2. 6. made up of a bundle of neurons
  3. 8. neuron type that connects other neurons to each other
  4. 12. quick, automatic actions that protect the body from danger
  5. 15. part of the brain responsible for coordination and balance
  6. 19. space between two neurons
  7. 20. reaction type that breaks down complex molecules into smaller ones
Down
  1. 1. neuron type that sends signals to muscles
  2. 2. a nerve fiber that sends signals away from the neuron
  3. 3. a nerve cell
  4. 5. neuron type that receives signals from sense organs
  5. 7. part of the brain that controls conscious thought
  6. 9. process of maintaining a constant internal environment
  7. 10. all of the chemical reactions occurring in cells
  8. 11. branches of the neuron that recieve signals
  9. 13. part of the brain that control breathing, blood pressure, heart rate
  10. 14. organs of the endocrine system
  11. 16. proteins that speed up chemical reactions
  12. 17. the brain and the spinal cord
  13. 18. reaction type that makes complex molecules from smaller ones