Ear Functions PLTW MI, 1.3

Auditory Nerve

Responsible for auditory function and balance.

Cochlea

Plays a key role in the sense of hearing and participates in the process of auditory transduction.

Eustachian Tube

Aerates the middle ear system and clears mucus from the middle ear into the nasopharynx.

Incus

Transmits vibrations from the malleus to the stapes.

Malleus

Connects to the tympanic membrane, transferring auditory oscillations to the incus and then the stapes.

Oval Window

Transmits the vibrations within the fluid contained in the cochlea.

Pinna

Collects sound waves and channels them into the ear canal (external auditory meatus), where the sound is amplified.

Round Window

Allows communication between the mesotympanum of the middle ear and the inner ear.

Semicircular Canals

Three tiny, fluid-filled tubes in your inner ear that help you keep your balance.

Stapes

Convey sound vibrations to the bone's flat base.

Tympanic Cavity

Small cavity surrounding the bones of the middle ear, containing the ossicles that transmit vibrations for sound detection.

Tympanic Membrane

Separates the outer ear from the middle ear.