functions of ciliary muscles, optic nerves, optic disc, pupil, iris, crystalline lens, sclerotic coat, choroid, retina, rods and cones of of an eye
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Answer:
ciliary muscles:-contract or relax to alter the shape of the Lens to focus the light Ray's in the retina
optic nerve:-Transmits the visual information to the brain
optic disc:-The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye
pupil:-light rays enters the eyes through pupil and falls on the retina
Iris:-regulates the amount of light rays entering the eyes
sclera:-protects the eye
lens:-light rays gets refracted by the lens and is focussed on the retina
choroid:-it absorbs the stray light rays to avoid internal reflection of the light rays and supplies nourishment to the cells in the eyeball as it is richly supplied with blood vessels
retina:-image is formed on the retina after focussing the light rays
rods:-produces the pigment rhodopsin which is sensitive to dull light
cones:-produces the pigment iodopsin which is sensitive to bright light and respond to colors