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Structure of eye

Total questions: 20

Worksheet time: 2hrs 53mins

Name
Class
Date
1.

Which part is #1?

a)

sclera

b)

cornea

c)

retina

d)

lens

2.

Which part is #2?

a)

iris

b)

cornea

c)

retina

d)

lens

3.

Which part is #4?

a)

pupil

b)

iris

c)

cornea

d)

lens

4.

Which part is #5?

a)

pupil

b)

iris

c)

cornea

d)

lens

5.

Which part is #7?

a)

sclera

b)

optic nerve

c)

cornea

d)

retina

6.

What does the optic nerve do?

a)

transmit impulses from retina to brain

b)

helps the eye focus

c)

receives light and sends it to brain

d)

transmits light rays to retina

7.

What does the iris do?

a)

transmits light rays to retina

b)

helps the eye focus

c)

sends messages to the brain

d)

a muscle that regulates how much light enters the eye

8.

What does the sclera do?

a)

protects the eye

b)

helps the eye focus

c)

allows light to enter eye

d)

transmits light rays to retina

9.

This structure is the back of the eye and it sends images to the optic nerve.

a)

Cornea

b)

Lens

c)

Retina

d)

Pupil

10.

The hole in the iris gets bigger and smaller because

a)

the iris is a muscle that moves to make the pupil larger/smaller

b)

the pupil can adjust itself to the amount of light coming in

c)

the pupil is a muscle that controls the size of the iris

11.

The thick, tough, white outer covering of the eyeball is called the __________________.

a)

sclera

b)

lens

c)

pupil

d)

cornea

12.

When an image hits the retina it is viewed...

a)

Right side up

b)

Upside down

c)

Blurry

d)

Not there

13.

Rods help us see...

a)

in color

b)

black, white, and grey

c)

only in yellow

d)

only in blue

14.

Cones help us see...

a)

color

b)

black, white, and grey

c)

only purple

d)

only with glasses on

15.

What is letter H pointing to?

a)

Lens

b)

Optic Nerve

c)

Iris

d)

Cornea

16.

The path light takes through the eye....

a)

Cornea, Retina, Optic Nerve, Iris, Pupil, Lens

b)

Cornea, Iris, Optic Nerve, Pupil, Lens, Retina

c)

Cornea, Iris, Pupil, Lens, Optic Nerve, Retina

d)

Cornea, Iris, Pupil, Lens, Retina, Optic Nerve,

17.

This structure is the black, center part of the eye. Light enters the eye here.

a)

Iris

b)

Optic Nerve

c)

Pupil

d)

Lens

18.
When the eyeball is too long causing Nearsightedness
a)
Myopia
b)
Hyperopia
c)
Asigmatism
d)
Presbyopia
19.
When the eyeball is too short, causing Farsightedness
a)
Hyperopia
b)
Myopia
c)
Glaucoma
d)
Astigmatism
20.

Rods are light sensitive cells in the retina that

a)

give you color vision in dim light

b)

respond in dim light

c)

give you color vision in bright light

d)

respond in bright light