quick quiz eye and ear

The amount of light entering the eye is regulated by th

• lens

• iris

• retina

• optic nerve

• feature detectors

The coiled, fluid-filled tube in which sound waves trigger nerve impulses is called the

• eustachian tube

• auditory canal

• semicircular canal

• cochlea

• vestibular apparatus

What part of the ear sends signals to the brain?

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

Which part of the ear contains tiny bones called the hammer, anvil, and stirrup?

• middle ear
• outer ear
• inner ear
• eardrum

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

• eardrum
• auditory nerve
• cochlea
• anvil

What happens to the eardrum when sound hits, causing transmission of sound to the inner ear?

• it opens
• it grows hair
• it refracts the sound
• it vibrates

In which part of the ear is sound changed into electrical signals which are then sent to the brain?

• outer ear
• middle ear
• inner ear
• hammer

What part of the eye controls how much light enters the black hole (pupil) in the center of the eye?

• optic nerve
• pupil
• cornea
• iris

In what part of the ear can damage occur to hair cells and nerve endings causing deafness?

• cochlea
• outer ear
• stirrup
• ear canal

The two parts of the eye that refract light are the ______________.

• eyelid and eyebrow
• eyelid and lens
• cornea and retina
• cornea and lens