Chapter 31 Sec 3 The Peripheral Nervous System & Sec 4 The Senses

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Across
  1. 2. fluid-filled part of inner ear; contains nerve cells that detect sound
  2. 5. the sensory receptor, sensory neuron, motor neuron, and effector that are involved in a quick response to a stimulus
  3. 8. part of the peripheral nervous system that regulates activities that are involuntary, or not under conscious control
  4. 9. small opening in the iris that admits light into the eye
  5. 10. innermost layer of the eye; contains photoreceptors
  6. 11. tough transparent layer of the eye through which light enters
  7. 12. photoreceptor in the eyes that is sensitive to light but can’t distinguish color
  8. 13. colored part of the eye
Down
  1. 1. sense organs that detect taste
  2. 3. one of three structures in the inner ear that monitor the position of the body in relation to gravity
  3. 4. in the eye, photoreceptor that responds to light of different colors, producing color vision
  4. 6. structure in the eye that focuses light rays on the retina
  5. 7. part of the peripheral nervous system that carries signals to and from skeletal muscles