Explain the following terms connected with the eye (i) Ciliary muscle (ii) Blind spot
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Ciliary muscle: A circular muscle that relaxes or tightens the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation.
Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and, therefore, there is no image detection in this area.
Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and, therefore, there is no image detection in this area.
Answered by
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eye
(i) Ciliary muscles: These are the muscles which
hold the eye lens
(iii) Blind pot: The point at which the optic nerve
leaves the eye. An image formed at this point is not sent to the brain.
hope i help you
(i) Ciliary muscles: These are the muscles which
hold the eye lens
(iii) Blind pot: The point at which the optic nerve
leaves the eye. An image formed at this point is not sent to the brain.
hope i help you
Anushree1111:
Thnx..
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