5 Questions
What is the primary function of the cornea, aqueous humor, eye lens, and vitreous humor in the mechanism of vision?
Refraction of light
What is the orientation of the images formed on the retina?
Inverted
Which structure is responsible for transmitting nerve impulses to the brain?
Optic nerve
What is the final result of the brain's processing of the nerve impulses from the retina?
Upright images
Which part of the eye is responsible for controlling the amount of light that enters the eye?
Pupil
Study Notes
Mechanism of Vision
- Light from an object enters the eye through the pupil
- Refraction of light occurs at four points: cornea, aqueous humor, eye lens, and vitreous humor
- Inverted and small images are formed on the retina as a result of refraction
- The retina converts the image into nerve impulses
- The optic nerve transmits these nerve impulses to the brain
- The brain interprets the impulses, flipping the image upright to create a perceived image
This quiz covers the process of how the eye works, from light entering the eye to the brain interpreting the image. Learn about the role of the cornea, lens, retina, and optic nerve in vision.
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