Eye and Ear function and purpose

Crystalline Lens

located behind the iris, helps focus light entering the eye

Cornera

transparent covering over the eye, protects the eye

pupil

small opening in the eye through which light passes

iris

colored portion of the eye

flovea

small indentation in the retina that contains cones

retina

light sensitive lining of the eye

viscous fluid

helps keep your eye its shape

sclera

helps maintain shape + protect it from injury

optic nerve

carries visual info from the retina to the brain

blind spot/ optic disk

point where we cannot send signals through the optic disk b/c we cannot respond to that portion

ear canal

connects pinna to eardrum, amplifies sound

malleus

transmit sound from the tympanic membrane (ear drum) to the inner ear

ossicles

tiny bones that vibrate with the ear drum to transmit sounds to the ear

basilar membrane

inside the cochlea, contains hair cells that transduce sound to the auditory nerve

pinna

collects sound into the ear canal

eustachian tube

to equalize air pressure between the atmosphere and the middle ear

incus

transmits vibrations from the malleus to the stapes

cochlea

auditory transduction

labyrinth

responsible for sound and vestibular transmission

tympanic membrane

ear drum, vibrates with incoming sound

stapes

transmits sound vibrations from the incus to the oval window

vestibular nerve

balance and stabilizing eye movement

semicircular cancal

attached to cochlea, fluid filled, responsible for balance

auditory nerve

the nerve that connects your ears to your brain