Sensory System. 1B3 Sensory System. OB30locate the main parts of the eye on a model or diagram and describe the function of the cornea , iris, lens, pupil, retina, optic nerve and ciliary muscle. front view of the eye. “white”. pupil. iris. Internet diagram. Inside of the eye. retina.
OB30locate the main parts of the eye on a model or diagram and describe the function of the cornea, iris, lens, pupil, retina, optic nerve and ciliary muscle
front view of the eye
Inside of the eye
the cornea allows light to enter the eye, and refracts (bends) the rays
the lens focuses light rays to form a clear image on the retina, where sensory cells detect the image
the iris contracts and relaxes in response to light conditions…
…this changes the size of the pupil, controlling the amount of light entering the eye…
the optic nerve brings a message to the brain about what we see
the function of the ciliary muscle is to contract and relax to change the shape of the lens
can you remember what’s what?
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Look at the diagram and explain what is happening