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what type of receptor cells are in the eye and what are their uses
rods detect light
cones detect colour
what is the first step in you eye causing a response
electrical impulses travel to the central nervous system via the optic nerve, then returns via a motor neurone to the effectors
What is the second step in the eye causing a response in the body
ciliary muscles relax causing ligaments to pull on the eye lens and make it thinner, this allows us to focus on objects far away
What is the final step in the eye causing a response to the body
Dilator muscles contract and increase the pupil in dim light