15. The Special Senses

The Lens and Focusing Light on the Retina

객관식
How is the lens able to change its refractive power to focus light on the retina?
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객관식
Which structure changes shape to focus light on the retina?
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객관식
What is the main component of the lens of the eye?
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객관식
The ability of the lens to bend light rays so they focus on the retina is known as:
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객관식
The lens of the eye is important to which of the following functions?
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객관식
Which part of the eye helps focus light rays on the retina?
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객관식
What is the primary function of the lens of the eye?
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객관식
What is the main function of the lens in the human eye?
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객관식
Which structure within the eye holds the lens in place?
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객관식
In the process of focusing light on the retina (accommodation), what is the primary function of the ciliary muscle?
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객관식
What structure changes the shape of the lens to focus light for far and near vision?
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객관식
Which part of the eye can change shape to help focus light on the retina?
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객관식
Which structure in the eye is primarily responsible for refining the focus of an image onto the retina?
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객관식
True or False: if false, choose the answer that corrects the statement.

The lens of the eye focuses on nearer objects by becoming less convex.
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객관식
In a previous example, you saw that when reading a book, your lens is rounder or more convex, but when you look up to see a student entering the library, your lens becomes flatter or less convex. What muscle action results in the lens becoming less convex?
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