HBS eye anatomy

Light passes through the _ , the clear domed-shaped surface that covers the front of the eye. This _incoming light.

• cornea, bends

• bends, cornea

• iris, pupil

• retina, rods

The _, the colored part of the eye regulates the size of the pupil, the opening that controls the amount of light that enters the eye. Behind the pupil is the _, a clear part of the eye that further focuses light onto the _. This is a thin, delicate, photosensitive tissue that contains special photoreceptor cells that convert light into elecrical signals.

• cornea, aqueous humor, retina

• vitreous humor, cornea,iris

• retina, lens, iris

• iris, lens, retina

These electrical signals are processed further,and then travel from the retina of the eye to the brain through the _ nerve, a bundle of about one million nerve fibers. We see with our _; our eyes collect visual information and begin this complex process.

• brain, oculomotor

• optic, brain

• olfactory, brain

• occipital, optic

The area behind the lens contains a gel like substance called the

• gelatin

• vitreous humor

• eye ball

• macula fovea

The optic nerve sends messages to the _ lobe.

• occipital

• parietal

• temporal

• frontal

The retina is located

• on one side of the eye

• at the front of the eye and lies flat

• at the back of the eye and lies flat

• at the front of the eye and supports the lens

To correct vision the lens does what to light rays?

• moves them

• bends them

• diminishes them

• eliminates them

Tags

NGSS.HS-PS4-5