External/outer ear - Channels sound waves into the ear, Middle ear - air filled chamber separated form the external ear by the ear drum, Inner ear - Contains the cochlea and fluid filled tubes which help us with orientation and balance, Ear drum - Thin flap of skin which vibrates when sound hits it, Stapes / Incus / Malleus - Tiny bone which amplifies sound waves and transmits the vibrations to the oval window, Cochlea - Contains jelly-like fluid called PERILYMPH, Organ of Corti - Hair like structures within the perilymph. Pass auditory information to the auditory nerve, Eustachian tube - Connects the middle ear to the throat. Allows the middle ear to be at the same pressure as atmospheric air, Round window - Allows vibrations form the oval window to pass through the perilymph fluid in the cochlea stimulating the Organ of Corti hairs, Auditory nerve - Carries impulses from the round window to the brain, Semi-circular canals - Fluid filled tubes connected to the cochlea but not involved in hearing. gives us information on balance and movement, Ampullae - Fluid filled swellings connected to the cochlea but not involved in hearing, gives us information on balance and movement,

Ear functions

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