CBNS 106 Vision Exam Questions & Answers 2024/2025
Pupil - ANSWERSopening that allows light to enter the eye (goes to retina)
Iris - ANSWERSsurrounds pupil/eye color/contains muscles that can change the size of pupil (controls amount of light reaching the eye)
Cornea - ANSWERScovers pupi...
Lateral Pathway - ANSWERSIncludes Amacrine(retinal ganglion cells) or horizontal cells(photoreceptors
and bipolar cells)
Fovea - ANSWERSCenter of the Visual Field; Light directly reaches to the photoreceptor cells at the
fovea; Less distortion+ less blur; provides color vision; provides high resolution vision
Opsin - ANSWERSPigment Protein; Active in light; inactive in dark
Receptive Field - ANSWERSThe location in the environment (or the surface of the body) from which the
appropriate stimulus will change that cell's activity; Circular, Overlap,vary in size
Topographic Map - ANSWERSNeurons positioned side-by-side in one region project to neurons so
positioned in the next region.
circadian rhythm - ANSWERSlight/dark cycle
Pupil - ANSWERSThe aperture controlling the amount of light entering the eye is called; Allows light to
enter the eye and reach the retina
COnes - ANSWERSThe fovea is the part of the retina that contains photoreceptors called:
The rods and the cones synapse directly on to: - ANSWERSBiopolar Cells
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