Human behaviour

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Across
  1. 2. An organ in the body that secretes a hormone
  2. 6. AN action caused by a stimulus
  3. 7. The system made up of the brain and the spinal cord.
  4. 11. Pre-programmed behaviour
  5. 13. Chemical messengers carried in the blood.
  6. 15. The way in which a human acts in response to a stimulus
  7. 16. An involuntary response to a stimulus
Down
  1. 1. A change in environment or an internal change within a human, which causes a response.
  2. 3. An organ that can detect change in environment
  3. 4. An innate human response to a stressful situation
  4. 5. A cell within a sense organ that can detect a specific stimulus
  5. 8. The system that cooridinates a response to a stimulus
  6. 9. The organ that carries electrical impulses to and from the brain
  7. 10. A muscle of gland that produces a response to a stimulus.
  8. 12. A specialized cell that transmits electrical impulses
  9. 14. The organ that coordinates the nervous system