Concept Check

  1. What are special senses?
  2. How do neurons involved in the sense of taste obtain information?
  3. What three organs are responsible for converting sound waves to mechanical waves?
  4. What are the common traits in the physiology of balance and hearing?
  5. What are the three layers of the eye, and what does each consist of?
  6. What structures does light pass through in the eye as it reaches the retina?
  7. What causes nearsightedness and farsightedness, and how are they treated?