Reading Comprehension/human Body (Page 4 of 4) in pdf

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Reading Comprehension/Human Body

Name ____________________________________________ Date _______________

Answers to The Human Eye:

IRIS

SCLERA

AQEOUS HUMOR

RETINA

CORNEA

LENS

OPTC NERVE

VITREOUS HUMOR

2. Light travels through the cornea, aqueous humor, pupil, lens and vitreous humor.

3. The aqueous humor is between the cornea and the iris.

4. The lens’s job is to bend light and focus the image onto the retina.

5. Rods and cones are two different types of cells found in the retina. Rods can see

black and white and different shades of gray, but they can’t see color. When you see

things at night, your rods are the cells that are working. Cones sense colors. There are

three different types of cones: red, blue and green cones. They work together to sense

all the colors.

6. The blind spot is the part of the retina where the optic nerve exits. Any image that

falls on the blind spot cannot be seen.

7. The eye protects itself using eyelids, eyelashes and tears. Eyelids blink to help keep

things out of the eye and also to keep the eye moist. With each blink a small amount of

tears is released onto the eye to wash away dust and bacteria.

8. If somebody is nearsighted it means that they have trouble seeing things far away.

The image in their eye is focused in front of the retina.

Reading Comprehension/human Body Page 4