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sight and the eye - Coggle Diagram
sight and the eye
cornea
iris
-nerves triggers Michael's iris muscle to dilate.
-inreases the size of the pupil to see in the dark
Lens
Michael's suspensory ligaments relax.
Michael's lenses become thinner for him to see in the dark.
acommodation
vitreous body
Retina
light sensitive part of the eye.
Rods and cons
Light rays cause chemical changes in Michael's eye.
chemical changes in the cells generate nerve impulses
Nerve impulses are transported to the brain via the optic nerves.
Michael is now able to sees the cat.
-to focus on the retina
Light enters through Michael's cornea
dark adaptation
Michael couldn't see at first because of insufficient light to stimulate the cones.
