Vision

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Across
  1. 2. ______ cells: transmit from rods and cones to bipolar cells
  2. 4. rod cells have _____, a photochemical neurotransmitter ---> perception of shades of gray
  3. 7. ______ cells: synapse with bipolar and horizontal cells
  4. 10. ______ cells: transmit from rods, cones, and horizontal cells to ganglion and amacrine cells
  5. 12. pupillary dilation
  6. 16. diaphragm muscle that can contract/relax to control the rays of light that go into the eye
  7. 17. loose CT with vasculature and pigmented cells
  8. 19. _____ provide greater acuity
  9. 20. ______ cells: transmit output from retina to optic nerve into brain
  10. 21. behind the iris; used to focus on near or far
Down
  1. 1. ______ are less numerous of the two photoreceptors
  2. 3. cones are responsible for the perception of ______
  3. 5. fibers terminate in the _______ for visual perception
  4. 6. rods function well in _____ light
  5. 8. the area centralists is composed entirely of _______
  6. 9. ________ humor: gelatinous fluid found in chamber between lens and retina; contains phagocytic cells
  7. 11. _______ cells: transmit signals in 2 directions; either directly from bipolar to ganglion or horizontally from bipolar to ganglionic dendrites or other amacrine cells
  8. 13. pupillary constriction
  9. 14. Fibers terminate in the _________ for visual reflexes
  10. 15. blind spot on retina
  11. 18. area centralis in animals