Parts of the Eye & Vision

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Across
  1. 4. the adjustable opening in the center of the eye through which light enters
  2. 5. the light sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information
  3. 6. retinal receptors that are concentrated near the center of the retina and that function in daylight/well-lit conditions, give detail and color sensations
  4. 8. a depth cue available to either eye alone
  5. 9. the process by which the eye’s lens changes shape to focus near or far objects on the retina
  6. 12. nerve cells in the brain’s visual cortex that respond to specific features of the stimulus, such as shape, angle, and movements
  7. 13. the point at which the optic nerve leaves the eye, creating a blind spot because no receptor cells are located there
  8. 15. retinal receptors that detect black, white, and gray, and are sensitive to movement
Down
  1. 1. theory that opposing retinal processes enable color vision
  2. 2. a depth cue that depends on the use of two eyes
  3. 3. a ring of the muscle tissue that forms the colored portion of the eye around the pupil and controls the size of pupil opening
  4. 7. the dimension of color that is determined by the wavelength of light
  5. 10. the nerve that carries neural impulses from the eye to the brain
  6. 11. the central focal point in the retina, around which the eye’s cones cluster
  7. 14. the transparent structure behind the pupil that changes shape to help focus images on the retina