| A | B |
|---|
| SENSORY ADAPTATION | adjustment to environment has been made |
| PHOTORECEPTORS | receptive to light |
| CHEMORECEPTORS | receptive to chemicals |
| MECHANORECEPTORS | receptive to pressur |
| THERMORECEPTORS | rec eptive to heat |
| SCLERA | outer covering of eye |
| CORNEA | transparent layer refracts light to pupil |
| AQUEOUS HUMOR | nutrient rich fluid behind cornea |
| CHOROID LAYER | vascular,colored middle layer |
| IRIS | regulates amount of light entering eye |
| RETINA | inermost layer contains rods & cones |
| RODS | photoreceptos/dim light |
| CONES | photoreceptors/colors |
| FOVEA | most sensitive area/all cone cells |
| BLIND SPOT | optic n attaches to retina |
| ACCOMODATION | adjutment made by lens /focus |
| GLAUCOMA | build up of fluid in front of lens |
| CATARACTS | lens/cornes gets cloudy |
| ASTIGMATISM | irregular shape of cornea or lens |
| NEARSIGHTEDNESS | image focused in front of retina |
| FARSIGHTEDNESS | image focused behind retina |
