This part of the eye controls how much light enters by changing size.
The pupil
The main job of the retina. hjkhkhjhk
detecting light and converting it into electrical signals
This system processes all the information your eyes and ears receive.
nervous system
One simple way to protect your eyes from damage.
Wearing sunglasses to block UV rays
True or False: Eating carrots gives you super eyesight.
Carrots help with eye health but won’t give you super vision. FALSE
These three tiny bones in the middle ear help transmit sound vibrations.
ossicles
The function of the cochlea in the auditory system.
converting sound waves into nerve signals
The reason your ears help you stay balanced.
the vestibular system in the inner ear
Why listening to loud music for too long can harm your ears.
Damaging the hair cells in the cochlea, leading to hearing loss
The reason your ears keep hearing sounds when you sleep
The brain is still processing sounds for safety, even in deep sleep
This part of the brain processes visual information.
occipital lobe
The way light travels through the eye before reaching the brain.
cornea → pupil → lens → retina → optic nerve → brain
The body system that delivers oxygen to the eyes to keep them working properly.
circulatory system
A vitamin that is great for eye health.
Vitamin A
Why your nose gets runny when you cry.
Tears draining through the nasolacrimal duct into the nose
The structure inside the ear that helps with both hearing and balance.
cochlea
How the eardrum helps you hear sounds.
vibrating when sound waves hit it, sending signals to the middle ear
Why the muscular system is important for both vision and hearing.
controlling eye movement and adjusting the middle ear bones
The best way to clean your ears without causing harm
Wiping the outer ear with a cloth instead of using cotton swabs
The connection between yawning and your ears popping.
the Eustachian tube opening to equalize pressure
This gel-like substance inside the eye helps maintain its shape.
vitreous humor
How the eardrum helps you hear sounds.
binocular vision (the brain merges images from both eyes to judge distance)
How your auditory system interacts with the limbic system (which controls emotions)
processing sounds that trigger emotional memories or reactions
The most common reason people need glasses or contact lenses.
refractive error (like nearsightedness or farsightedness)
The truth behind the myth that your eyes stay the same size from birth.
Your eyes grow slightly from birth to adulthood. FALSE.