Ch3 P1

Question 1

an opening for light to enter

Answer 1

Pupil

Question 2

NONADJUSTABLE clear part covering the front; 80% of where images are focused

Answer 2

Cornea

Question 3

ADJUSTABLE to deal with distance; 20% of where images are focused

Answer 3

Lens

Question 4

help shape the lens to focus on far and close objects

Answer 4

Ciliary muscles

Question 5

back of the eye containing rods and cones (photoreceptors to visual receptors)

Answer 5

Retina

Question 6

sends electrical signals to the brain

Answer 6

Optic nerve