Eyes, Ears, and Sleep Quiz

Which part of the eye regulates the size of the pupil and contains pigments that give your eyes their color?

• Iris

• Lens

• Pupil

• Cornea

What is the function of the lens in the eye?

• To detect colors

• To regulate the size of the pupil

• To nourish the eye

• To focus light

Where are the nerve impulses sent after light strikes the rods and cones in the retina?

• To the auditory nerves

• To the taste buds

• To the olfactory nerves

• To the optic nerves

What is the cause of nearsightedness?

• An elongated eyeball

• A deficiency in cones

• An eyeball that is too short

• An uneven curvature in the cornea or lens

What is the function of the semicircular canals in the inner ear?

• To detect colors

• To send information to the brain about head movements

• To focus light

• To regulate the size of the pupil

What is the purpose of the auditory tube in the middle ear?

• To equalize air pressure

• To detect sounds

• To heal body tissues

• To send impulses to the brain

What is the percentage of REM sleep in the sleep cycle?

• 25%

• 50%

• 75%

• 10%

What is the disorder in which a person stops breathing for short periods during sleep?

• Sleep Apnea

• Narcolepsy

• Color blindness

• Insomnia

What is the body's internal system for regulating behavior patterns during a 24-hour cycle called?

• Insomnia

• NREM Sleep

• REM Sleep

• Circadian Rhythm

What is one tip for developing good sleep habits for teens?

• Fall asleep with the TV on

• Exercise right before bedtime

• Avoid caffeine and sugary foods after noon

• Have all-nighters to disrupt sleep patterns