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Sheep Eye Practical

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.

Number 1 is the _____.

a)

Iris

b)

Cornea

c)

Lens

d)

Sclera

2.

Number 2 is the _____.

a)

Iris

b)

Pupil

c)

Retina

d)

Sclera

3.

The function of #1 is_________.

a)

Clear covering that absorbs the light with pigmented cells

b)

Clear covering that allows the entry of light into the eyes.

c)

Dark covering that blocks light from entering the eye

d)

Dark covering that open and closes to control light into the eye

4.

The function of #2 is ______.

a)

thin, clear covering that allows light to enter the eye

b)

thin, white covering that allows light to enter the eye

c)

thick, tough covering that protects the eye from injury

d)

thick, clear covering that protects the eye from injury

5.

The name of #3 is a(n) ___________.

a)

Optic tendon

b)

Optic nerve

c)

Optic muscle

d)

Otic nerve

6.

The function of #3 is _______________.

a)

To move the eye from side to side

b)

To transmit light information into motor signals

c)

To keep the eye attached to the eye socket

d)

To transmit light information into electrical signals

7.

What is #4?

a)

Iris

b)

Pupil

c)

Cornea

d)

Lens

8.

What is #5?

a)

Iris

b)

Cornea

c)

Lens

d)

Pupil

9.

The function of #4 is ________.

a)

to make an image on the retine

b)

to control the amount of light in the eye.

c)

to absorb light for vision

d)

allows light to enter the eye

10.

The function of #5 is ________.

a)

to make an image on the retine

b)

to control the amount of light in the eye.

c)

to absorb light for vision

d)

allows light to enter the eye

11.

The name of #6 is the _______.

a)

Retina

b)

Tapetum lucidum

c)

Optic nerve

d)

Sclera

12.

The function of #6 is ______________.

a)

Reflected structure to help see at night

b)

Pigmented cells that absorb light

c)

Tough membrane the protects eye

d)

Gelatinous material that reflects light

13.

What is #7?

a)

Lens

b)

Iris

c)

Sclera

d)

Vitreous humor

14.

What is #8?

a)

Lens

b)

Iris

c)

Aqueous humor

d)

Vitreous humor

15.

What is the function of #7?

a)

Makes an image on the retina

b)

Control how much light enters the eye

c)

Clear jelly that helps eye ball keep its shape

d)

Fluid that helps keep the cornea keep its shape

16.

What is the function of #8?

a)

Makes an image on the retina

b)

Control how much light enters the eye

c)

Clear jelly that helps eye ball keep its shape

d)

Fluid that helps keep the cornea keep its shape

17.

After light passes through the cornea it immediately goes through the ____________ next.

a)

lens

b)

aqueous humor

c)

vitreous humor

d)

sclera

18.

The ability to see better at night for the sheep is due to all of the following except

a)

Cones

b)

Rods

c)

Tapetum lucidum

d)

Pupil size

19.

Which of the following is responsible for protecting the eye in mammals?

a)

muscle

b)

fat

c)

blood

d)

nerves

20.

When comparing the aqueous humor and vitreous humor - which statement is true?

a)

The aqueous humor is located in the anterior eye chamber.

b)

The aqueous humor is made of cloudy, watery material.

c)

The vitreous humor is located in the anterior eye chamber.

d)

The vitreous humor is made of cloudy, gelatinous material.