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Sensory System. 1B3 Sensory System. OB30 locate 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.

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1b3 sensory system
1B3 Sensory System

OB30 locate 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



Inside of the eye

retina

Ciliary muscle

optic nerve

cornea

pupil

lens

iris



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…



front view see

side view

lens

lens

ciliary muscle

the function of the ciliary muscle is to contract and relax to change the shape of the lens


G see

can you remember what’s what?

CORNEA

CLICK FOR ANSWERS

RETINA

PUPIL

OPTIC NERVE

IRIS

LENS

CILIARY MUSCLE


retina see

ciliary muscle

cornea

optic nerve

pupil

iris

lens



H/W see

  • P74

  • Q 6,7,8,9.


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