Asked by Andrew McDonald on May 29, 2024

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A nurse is teaching a patient about vision. In which order will the nurse describe the pathway for vision, beginning with the first structure?
1) Lens
2) Pupil
3) Retina
4) Cornea
5) Optic nerve

A) 2, 1, 4, 5, 3
B) 1, 2, 4, 3, 5
C) 4, 2, 1, 3, 5
D) 5, 2, 4, 1, 3

Pathway For Vision

Refers to the neurological pathway from the eyes to the brain that allows for sight, including the retina, optic nerve, optic chiasm, and the visual cortex.

Lens

A piece of transparent material, typically glass or plastic, which is used to refract or focus light rays.

Pupil

The circular opening in the center of the eye that allows light to enter and reach the retina, and its size changes in response to light exposure and focus effort.

  • Illustrate understanding of the physiological processes involved in hearing and sight.
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Gabrielle DanielJun 03, 2024
Final Answer :
C
Explanation :
Light rays enter the convex cornea and begin to converge. An adjustment of light rays occurs as they pass through the pupil and lens. Change in the shape of the lens focuses light on the retina. The sensory retina contains the rods and cones (i.e., photoreceptor cells sensitive to stimulation from light). Photoreceptor cells send electrical potentials by way of the optic nerve to the brain.