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The inner ear is made up of several structures including the cochlea, which is responsible for hearing, and the vestibular system, which is responsible for balance and spatial orientation. The cochlea contains tiny hair cells that convert sound vibrations into electrical signals that are sent to the brain. The vestibular system consists of three semicircular canals and otolithic organs that detect changes in head position and movement.
Sound is actually a series of sound waves or vibrations. These waves pulse against the eardrum, which the bones to the ear send to the brain as sounds. Acoustics in audio equipment convert sound on a record back into sound waves.
A microphone is a good example of a device that utilizes electromagnetic induction (Faraday's Law) to convert motion (vibrations in air) into electricity. The sound vibrates a membrane attached to a little magnet inside a coil of wire. The changing magnetic field induces a current in the wire.
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The cocheal contains receptor cells that convert sound vibrations into impulses that are sent to the brain.
The cocheal contains receptor cells that convert sound vibrations into impulses that are sent to the brain.
Cochlea
Sound waves enter through the outer ear, then sound waves move through the ear canal. Next sound waves strike the eardrum, causing it to vibrate, then vibrations enter the middle ear. Then the hammer picks up the vibrations, then vibrations are passed to the anvil. Next the vibrations are transmitted to the stirrup, then a vibrating membrane transmits vibrations to the inner ear, and then vibrations are channeled into the cochlea. Then nerve cells detect vibrations and convert them to electrical impulses, then electrical impulses are transmitted to the brain. Then the brain interprets electrical impulses as sound.
What_is_the_path_that_sound_takes_through_the_earwaves enter through the outer ear, then sound waves move through the ear canal. Next sound waves strike the eardrum, causing it to vibrate, then vibrations enter the middle ear. Then the hammer picks up the vibrations, then vibrations are passed to the anvil. Next the vibrations are transmitted to the stirrup, then a vibrating membrane transmits vibrations to the inner ear, and then vibrations are channeled into the cochlea. Then nerve cells detect vibrations and convert them to electrical impulses, then electrical impulses are transmitted to the brain. Then the brain interprets electrical impulses as sound.
When a sound wave strikes the eardrum and passes along the hammer, anvil and stirrup (the tiny bones in your ear) the stirrup bone strikes a little membrane covered window that sloshes the fluid back and forth (the fluid helps pass along the vibrations). The sloshing stimulates the tiny hair cells which convert the vibrations into nerve impulses. The impulses travel along to the brain which interprets the impulses as sound.
Sound waves first enter the outer ear, which consists of the pinna (visible portion) and the ear canal. The pinna helps collect sound waves and directs them into the ear canal. The sound waves then travel through the ear canal and reach the eardrum (tympanic membrane) at the end of the canal.
Sensory nerves, or the receptor nerves, as they are only made up of sensory neurons. Receptors are the specialised structures at the end of the sensory nerves that receive the stimuli and convert it into an electrical signal to be conducted by the nerve as a nerve impulse.
Receptors
Sound travels in waves. Our ears pick up these waves and funnel them to the eardrum. The eardrum interprets them as vibrations. These vibrations pass through the eardrum, into the inner ear via the hammer, anvil, and stirrup bones. This causes fluid in the inner ear to bend tiny hairs which convert the vibrations into nerve impulses. The auditory nerve then sends the signals to the brain, which converts them again into the sound of what is heard.
Cornea
Bipolar cells