Structures & Functions of the Eye

What is the function of the orbital cavity?

• Allows for sight

• Houses and protects the eyeball

• Supports the brain

• Facilitates hearing

What structure forms the orbital cavity?

• The brain

• The spine

• The skull

• The ribcage

What is the diameter of the eyeball?

• 2 inches

• 1 inch

• 3 inches

• 0.5 inches

What is the primary function of the eyeball?

• Protects the brain

• Facilitates hearing

• Allows for sight

• Supports the spine

What is the primary function of the eyelid?

• To enhance vision

• To protect the eye

• To produce tears

• To change eye color

What are eyelashes primarily responsible for?

• Enhancing appearance

• Preventing large particles from entering the eye

• Producing tears

• Changing eye color

What is the function of the conjunctiva?

• It covers the sclera and secretes mucus to lubricate the eye.

• It protects the cornea and absorbs light.

• It controls the amount of light entering the eye.

• It focuses light onto the retina.

Where is the conjunctiva located?

• It lines the inside of the eyelids.

• It covers the lens of the eye.

• It surrounds the iris.

• It is located behind the retina.

What is the primary function of the lacrimal glands?

• Produce saliva

• Produce tears

• Produce sweat

• Produce hormones

How do the lacrimal glands help the eyes?

• They enhance vision

• They protect the eye

• They change eye color

• They improve focus