Nervous system

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Across
  1. 6. it can help with touch hearing, vision, speech, reasoning
  2. 7. it brain and spinal cord
  3. 9. controls vital processes including respiration and heartbeat
  4. 10. the initial signs or subtle activation of the parasympathetic nervous system, often associated with feelings of calm and relaxation
Down
  1. 1. your body's automatic, natural reaction to a perceived threat, preparing you to either confront danger or escape it.
  2. 2. all of the nerves in the body that connects to the CNS
  3. 3. The somatic nervous system controls voluntary movements and sensory input.
  4. 4. known as the "little brain", is a crucial part of the brain located at the back
  5. 5. doing something without thinking
  6. 8. he fundamental unit of the nervous system