The Nervous System

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Across
  1. 1. A small pulse of electrical current that flows through a neuron
  2. 3. A cell that sends messages from receptors to the central nervous system
  3. 7. A bundle of fibres made up of neurons
  4. 8. A cell that detects chemicals such as tastes and smells
  5. 12. A cell that detects light
  6. 14. Part of a neuron that receives messages from other neurons
  7. 16. The body system that senses the environment and controls actions
Down
  1. 2. A cell that sends messages from the central nervous system to an effector
  2. 3. Something an organism's nervous system can detect
  3. 4. A cell that detects stimuli of a specific type
  4. 5. A cell that transmits electrical impulses
  5. 6. The part of a neuron that contains the nucleus
  6. 9. A cell that detects temperature changes
  7. 10. The part of a neuron that carries impulses to other neurons
  8. 11. “________” nervous system: All of the nerves extending from the brain and spinal cord
  9. 13. “________” epithelium: Tissue in the nose that contains receptor cells for smell
  10. 15. “________”nervous system: The brain and spinal cord