U2 Lab Practical: Sheep Eye Dissection

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The structure labeled letter "A" helps send light into the eye. What is the name of this structure

iris

lens

sclera

retina

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What does the choroid layer provide? Check all that apply.

oxygen via blood

preceived color

fluid to keep the shape of the eye

nutrients via blood

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What is the primary function of rod cells in the eye?

Color vision in bright light.

Providing sharp visual detail.

Detecting light in dim conditions.

Filtering UV light from the sun.

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What is the main function of the tapetum lucidum in a sheep eye?

Focuses light onto the retina.

Protects the eye from dust.

Enhances low-light vision at night.

Adjusts the lens for distance vision.

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What is the main function of the lens in a sheep eye?

Regulates pupil size.

Protects the eye from injury.

Helps with color perception.

Focuses light onto the retina.

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This is a view of the back side of the sheep eye. What is the structure labeled "G"?

pupil

medial rectus muscle

optic nerve

cornea

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Which type of photoreceptor is responsible for color vision?

Neither rods nor cones detect color.

Cone cells are responsible for color vision.

Both rods and cones provide color vision.

Rod cells help in color vision.

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Is this a sclera?

yes

no

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What is the main function of the sclera?

Provides protection and structure to the eye.

Helps the eye focus light.

Controls eye movement and alignment.

Regulates the amount of light entering the eye.

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These eye muscles allow the sheep to move its eyes from side to side. Check all that apply.

superior rectus

lateral rectus

medial rectus

inferior rectus

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Match

Draggable item		Corresponding Item
structure "F"		found in both sheep and human eyes
structure "E"		found in sheep eyes, not in human eyes

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Where is the retina located?

It serves as an eyelid.

It covers the front of the eye.

It covers the pupil.

It lines the back of the eye.

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What color is the iris of the sheep eye?

brown

yellow

green

blue

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Thank you for completing this Sum It Up!

U2 Lab Practical: Sheep Eye Dissection

The structure labeled letter "A" helps send light into the eye. What is the name of this structure

What does the choroid layer provide? Check all that apply.

What is the primary function of rod cells in the eye?

What is the main function of the tapetum lucidum in a sheep eye?

What is the main function of the lens in a sheep eye?

This is a view of the back side of the sheep eye. What is the structure labeled "G"?

Which type of photoreceptor is responsible for color vision?

Is this a sclera?

What is the main function of the sclera?

These eye muscles allow the sheep to move its eyes from side to side. Check all that apply.

Match

Where is the retina located?

What color is the iris of the sheep eye?

The structure labeled letter "A" helps send light into the eye. What is the name of this structure

What is the structure labeled letter "B"?

The structure labeled letter "C" focuses images in the eye. You colored it light blue in your notebook model. What is the name of this structure?

What does the choroid layer provide? Check all that apply.

What is the name of the structure that the forceps is pulling on?

What is the function of the structure that the forceps is pulling on?

Where does the structure held by the forceps connect to the eye?

What is the name of the structure that looks like a pearl?

What is the primary function of rod cells in the eye?

What is the main function of the tapetum lucidum in a sheep eye?

What is the main function of the lens in a sheep eye?

This is a view of the back side of the sheep eye. What is the structure labeled "G"?

What is the function of the structure labeled "G"?

Which type of photoreceptor is responsible for color vision?

Is this a sclera?

What is the main function of the sclera?

These eye muscles allow the sheep to move its eyes from side to side. Check all that apply.

Match

Where is the retina located?

What color is the iris of the sheep eye?

What is the structure labeled letter "B"?

The structure labeled letter "C" focuses images in the eye. You colored it light blue in your notebook model. What is the name of this structure?

What is the name of the structure that the forceps is pulling on?

What is the function of the structure that the forceps is pulling on?

Where does the structure held by the forceps connect to the eye?

What is the name of the structure that looks like a pearl?

What is the function of the structure labeled "G"?