Eye and Ear Anatomy Review

Which part of the eye is responsible for controlling the amount of light that enters the eye?

• Retina

• Iris

• Lens

• Cornea

If the lens of the eye becomes cloudy, which function is most directly affected?

• Focusing light onto the retina

• Protecting the eye from dust

• Producing tears

• Transmitting nerve impulses

Which part of the ear converts sound vibrations into electrical signals for the brain?

• Cochlea

• Tympanic membrane

• Auditory canal

• Ossicles

How does the cornea contribute to vision?

• It absorbs light

• It refracts light entering the eye

• It produces aqueous humor

• It detects color

Which structure in the ear helps maintain balance?

• Cochlea

• Semicircular canals

• Tympanic membrane

• Eustachian tube

If the retina is damaged, which process is most likely to be impaired?

• Transmission of visual information to the brain

• Regulation of pupil size

• Production of tears

• Movement of the eyeball

Which part of the ear amplifies sound vibrations before they reach the inner ear?

• Ossicles

• Cochlea

• Pinna

• Eustachian tube

What is the function of the aqueous humor in the eye?

• To focus light onto the retina

• To maintain intraocular pressure and nourish the lens and cornea

• To transmit nerve impulses

• To detect color

Which part of the ear equalizes air pressure on both sides of the eardrum?

• Eustachian tube

• Cochlea

• Pinna

• Semicircular canals

How does the lens of the eye adjust to focus on objects at different distances?

• By changing its shape

• By moving forward and backward

• By altering its color

• By producing more tears