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Eyes

Total questions: 29

Worksheet time: 22mins

Name
Class
Date
1.
What helps us to see color?
a)
rods
b)
lens
c)
cones
d)
sclera
2.
When an image hits the retina it is upside down. What flips it over so that it is right side up?
a)
lens
b)
retina
c)
optic nerve
d)
brain
3.
Which part is the colorful part of the eye?
a)
pupil
b)
iris
c)
cornea
d)
eyeball
4.

Part of the eye that function to regulate the amount of light entering the eyes is ....

a)

cornea

b)

iris

c)

pupil

d)

lens

e)

retina

5.

Part of the eye that the functions to capture images formed by the eye lens is ....

a)

cornea

b)

optic nerve

c)

retina

d)

pupil

e)

iris

6.
Photoreceptors that detect Color
a)
Cones
b)
Rods
7.
Photoreceptors that detect gray tones in low light
a)
Rods
b)
Cones
8.
What is this?
a)
Choroid
b)
Lens
c)
Sclera
d)
Ciliary Body
9.
What is this?
a)
Vitreous Humor
b)
Aqueous Humor
c)
Retina
d)
Sclera
10.
What is this?
a)
Optic Nerve
b)
Optic Disc
c)
Retina
d)
Sclera
11.
what is this?
a)
Aqueous Humor
b)
Vitreous Humor
12.
What is this?
a)
Cornea
b)
Choroid
c)
Cones
d)
Lens
13.
Which part of the eye is the outer white part of the eye?
a)
cornea
b)
iris
c)
ciliary body
d)
sclera
14.
What part of the eye sends nerve impulses to the brain
a)
optic nerve
b)
iris
c)
cornea
d)
sclera
15.
When someone can see better far away. 
a)
Farsighted 
b)
Shortsighted 
c)
Blind 
d)
Nearsighted 
16.
When someone can see better up close than they can far away. 
a)
Farsighted 
b)
Blind 
c)
Nearsighted 
d)
Shortsided 
17.

What is the name of the cord like structure coming from the back of the eye?

a)

Optic Neve

b)

Sclera

c)

Cornea

d)

Retina

18.

The opening through which light enters the eye

a)

lens

b)

cornea

c)

pupil

d)

receptor cell

19.

The eye is filled with...

a)

Meat

b)

Chocolate

c)

Guts

d)

Fluids

20.

True or false. The Lens contains the Rods and Cones

a)

True

b)

False

21.

Above the outer corner of each eye are the lacrimal (say: LAK-ruh-mul) glands, which make _____________.

a)

saliva

b)

tears

c)

cake

d)

blood

22.
What is the main reason that we do not get color and detail information in our peripheral vision?
a)
The center of the retina has no cones.
b)
The center of the retina has no rods.
c)
The edges of the retina have no cones.
d)
The edges of the retina have no rods.
23.
Which of these general statements about photo-receptors is most accurate?
a)
Both rods and cones are responsible for color vision.
b)
Rods send signals to the brain in bright light, and cones send signals in dim light.
c)
Rods and cones alternate their functions in dim and bright light.
d)
Rods send signals to the brain in dim light and cones send signals inbright light.
24.
What does the optic nerve do?
a)
Connect each eye to the visual cortex
b)
It allows you to sneeze
c)
Connect each eyeball to the seeular gland
d)
Makes you a wizard
25.
What is the innermost layer and most delicate layer of the eyeball where photo-receptors are located? 
a)
sclera
b)
cornea
c)
retina
d)
aqueaous humor
26.
What causes the blind spot in your field of vision?
a)
At the root of the optic nerve (optic disk), there are no photoreceptors, so no messages get sent to the brain.
b)
Too many rods and cones in one place.
c)
Too much sunshine
d)
I have no idea.
27.
Why is it useful to have peripheral vision?
a)
Peripheral vision provides information about potential dangers approaching from the side, a place where we are not actively looking.
b)
Peripheral vision provides no  information about potential dangers approaching from the side, a place where we are not actively looking.
c)
Peripheral vision is not useful anymore because there are no dinosaurs.
d)
Peripheral vision is useful for seeing through wals.
28.

Move the entire eyeball around

a)

Ciliary Body

b)

Extrinsic Eye Muscles

c)

Suspensory Ligaments

d)

Optic Nerve

e)

Iris

29.

Lets light into the anterior surface of the eye

a)

Cornea

b)

Vitreous Humor

c)

Sclera

d)

Aqueous Humor

e)

Choroid

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