The inner ear contains the receptors for sound which convert fluid motion into action potentials that are sent to the brain to enable sound perception. The airborne sound waves must be transferred into the inner ear for hearing to occur.
The tympanic membrane, also known as the eardrum, is the part of the ear that converts sound waves into vibrations. When sound waves reach the eardrum, it vibrates and transmits these vibrations to the middle ear.
The cochlea
The axon of a neuron is the part that sends information to other neurons or cells in the body. It transmits electrical signals known as action potentials from the cell body to the axon terminals where communication with other neurons occurs.
The simple answer: In the inner ear the cochlea (the roundish wound up thing that looks a little like a snail shell to me), picks up vibrations from the eardrum (AKA Tympanic membrane) which are then converted to nerve impulses, which are received by the brain as sound.
The cochlea, which is a spiral-shaped structure in the inner ear, is responsible for changing vibrations into nerve signals. Inside the cochlea, specialized hair cells convert the mechanical vibrations of sound waves into electrical signals that can be interpreted by the brain.
Action potentials are generated on a part of the neuron called the 'axon hillock' - the proximal most portion of the axon.
It doesn't process anything, it is a part of a system (eardrum, 3 bones of the middle ear, and a thin part of your skull) that converts vibrations in the air into vibrations in the fluids of your inner ear. Those you can hear.
The part of a cell that carries action potentials away from the cell body is called the axon. Axons are long, slender projections that transmit electrical signals, known as action potentials, to other neurons, muscles, or glands. They are essential for communication within the nervous system and can vary greatly in length and diameter. The axon is often insulated by a myelin sheath, which helps speed up signal transmission.
The tympanic membrane, also known as the eardrum, is the part of the ear that converts sound waves into vibrations. When sound waves reach the eardrum, it vibrates and transmits these vibrations to the middle ear.
Cartridge turntables are used to play records. The cartridge is the part of the turntable that converts the vibrations picked up from the record into music.
Action potentials caused by sound transduction are carried by the auditory nerve fibers, which are part of the vestibulocochlear nerve (cranial nerve VIII). These nerve fibers transmit the signals from the hair cells in the cochlea to the brainstem and auditory cortex for processing.
The tranducer/microphone converts the vibrations of the waves into electrical audio signals, the vibrations cause a diaphragm inside the transducer to vibrate which in turns create pulses of current that can be interpreted later as the recorded audio.
Information is communicated along the nerves through electrical signals known as action potentials. These action potentials travel down the length of the nerve cell and are transmitted from one nerve cell to another at specialized junctions called synapses. In this way, messages can be passed from one part of the body to another.
The axons are long so that action potentials can be sent from one part of the body to another very quickly. If instead of one long axon we had loads of individual cells there would be a much bigger delay because the action potentials would have to be converted to chemical signals very fequently and that takes time.
The eardrum receives the vibrations of the air.
The cochlea
The eardrum