Test 2

Front 1

SCLERA

Back 1

1. white of the eye

2. outer layer of eye

3. tought, fibrous,
protective portion of the eye

Front 2

CORNEA

Back 2

1. located anteriorly

2. outer layer is transparent and permits light to enter the globe

Front 3

IRIS

Back 3

1. circular

2. pigmented

3. muscular structure that gives color to the eye

4. regulates amount of light entering the eye

Front 4

PUPIL

Back 4

1. circular opening in middle of iris

2. allows light to enter the eye

Front 5

LENS

Back 5

1. transparent, biconvex structure directly behind the iris

2. helps with focusing the eye

3. lens separates the inner eye into anterior and posterior cavities

Front 6

AQUEOUS HUMOR

Back 6

1. fluid in front of lens

2. gives cornea its curved shape

3. watery solution which supplies oxygen and nutrients to lens and cornea

Front 7

VITREOUS HUMOR

Back 7

1. fluid which helps eye maintain its shape

2. jelly like substance

3. fluid behind lens

Front 8

RETINA

Back 8

1. inner layer of eye

2. contains different layers of nerve cells

3. continous with the optic nevrve which carries visual impulses to the brain

Front 9

RODS

Back 9

1. structures that respond to low intensity light

2. responsible for night vision

Front 10

CONES

Back 10

1. strictures that respond to higher light intensity

2 responsible for daytime vision

Front 11

FOVEA CENTRALIS

Back 11

1. small depression near the center of the rtina where cones are densely concentrated.

2. point of best focus and color vision

Front 12

REFRACTION

Back 12

1. bending of light rays resulting when light passes through subsance in the eye (aqueous humor, vitreous humor)

Front 13

ACCOMDATION

Back 13

increases / decreases its curve to retract light rays into focus

Front 14

CONSTRICTION

Back 14

1. controlled by iris

2. regulates amount of light entering eye

Front 15

INVERSION

Back 15

1. process which brain interprets images that have passed through the lens

2. lens provide an upside down image on end receptors located in rods and cones

3. ocipital loves of cerebrum recieve and convert them into right-sde simages for view and storeage