The muscles of the iris control the
(A) focal length of the eye-lens
(C) shape of the crystalline lens
(B) opening of the pupil
(D) optic nerve
Answers
Answer:
opening of the pupil.....
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Answer:
(B) opening of the pupil
The muscles of the iris control the opening of the pupil.
Explanation:
The iris, a muscle in the eye, regulates the pupil's size. The pupil is a hole through which light enters the eye. The pupil's size changes as a result of its dilation and contraction. Thus, we can say that the iris regulates the quantity of light that reaches our eyes.
Iris: It regulates how much light enters the eye the iris changes the pupil's size.
Pupil: It regulates the eye's illumination.
Retina: The retina creates an image. Smooth muscle fibers make up iliac crest muscles. The lens becomes flat when the ciliary muscles relax, and thick when they contract. The focal length of the eyes is altered by this change in lens curvature.
Light enters our eyes through a hole called the pupil. Our eye's iris, a muscle, regulates the pupil's size. The iris regulates the pupil's size, which affects how much light reaches the retina at the back of the eye.