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chapter 19 sec 1&4

pigment colored substances that are used to color other materials
secondary colors two primary colors combine in equal amounts
transparent transmits most of the light that strikes it
iris a ring of muscle that contracts and expands to change the size of the pupil
cones cells that respond to color
nearsighted person can see nearby objects clearly, but distant objects are blurred
optic nerve rods and cones signals to the brain along a short, thick nerve
complementary primary color and a secondary color that can combine to form white light
cornea light enters through the transparent front surface
opaque reflects or absorbs all of the light it strikes
farsighted person can see distant objects but nearby objects are blurred
pupil light passes through an opening in the eye
primary three colors that combine to make any other color
translucent scatters light as it passes through
retina a layer of cells that lines the inside of the eyeball
rods are cells that contain a pigment that responds to small amounts of light
Created by: soccerswimpar