Questions and Answers
What part of the eye controls the amount of light entering?
Iris
Which part of the eye is responsible for generating electric signals when light falls on it?
Retina
What part of the eye provides small adjustments to the focal length to focus on objects at different distances?
Lens
Which part of the eye is responsible for passing the generated electric signals to the brain?
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Study Notes
Eye Structure and Function
- The iris controls the amount of light entering the eye by adjusting the size of the pupil.
- The photoreceptors (rods and cones) in the retina are responsible for generating electric signals when light falls on them.
- The ciliary muscles provide small adjustments to the focal length of the lens to focus on objects at different distances through the process of accommodation.
- The optic nerve is responsible for passing the generated electric signals to the brain, where they are interpreted as visual information.
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