Unit 2A

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Across
  1. 3. gap between neurons
  2. 4. neuron's cell body
  3. 8. neurotransmitter associated with learning and memory
  4. 11. division of nervous system that controls voluntary movement of skeletal muscles
  5. 12. excess neurotransmitter is reabsorbed by the neuron that released it
  6. 14. neurotransmitter that effects muscle control and happiness
  7. 15. division of nervous system that controls non-voluntary functions
Down
  1. 1. neurotransmitter that promotes sleep and relaxation
  2. 2. study of variation and heredity in living organisms
  3. 5. protective layer that surrounds the axon
  4. 6. division of the nervous system that returns the body to a calm state after an emergency
  5. 7. division of nervous system that prepares the body for an emergency
  6. 9. neurotransmitter that regulates sleep, mood, and appetite. Low levels can lead to depression
  7. 10. part of neuron that receives information
  8. 13. part of neuron that sends messages to other neurons, muscles, and glands