Eye and ear (3C)

Which part is #1?

• sclera

• cornea

• retina

• lens

Which part is #3?

• sclera

• cornea

• retina

• lens

Which part is #5?

• pupil

• iris

• cornea

• lens

What does the pupil do?

• protects the eye

• helps the eye focus

• allows light to enter eye

• regulates how much light enters the eye

What does the optic nerve do?

• transmit impulses from retina to brain

• helps the eye focus

• receives light and sends it to brain

• transmits light rays to retina

Which part of the ear is shaped like a snail shell?

• eardrum
• auditory nerve
• cochlea
• anvil

What part of the ear sends signals to the brain?

• optic nerve
• ear canal
• auditory nerve
• middle ear

Which part of the ear is the first to vibrate as sound enters?

• cochlea
• auditory nerve
• eardrum
• hair cells

structure #5

• tympanic membrane
• incus
• semicircular canals
• stapes

What does the fluid inside your ears do when displaced?

• Vibrates the skin in your ear

• Sends sound waves to the brain

• Displaces the hair cells.

• Stimulates the hair cells to send an impulse

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