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Hair cells in the ear stimulate the auditory nerve by converting sound vibrations into electrical signals. When sound waves reach the ear, they cause the hair cells to move, which in turn triggers the release of neurotransmitters. These neurotransmitters then activate the auditory nerve fibers, sending signals to the brain for processing and interpretation of sound.
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What happens when auditory ossicles vibrate the oval window and set the endolymph in motion?
The now fluid vibrations will stimulate the mecanoreceptors turning the vibrations into electrical energy which will then be sent by the auditory nerve (cranial nerve #8) to the brain for interpretation.
What Sound vibration are converted into nerve impulses in the?
In the ear, sound vibrations are converted into nerve impulses in the cochlea, a spiral-shaped organ that contains hair cells. These hair cells respond to the vibrations by sending electrical signals through the auditory nerve to the brain, where they are perceived as sound.
Which type of hearing loss develops when the auditory nerve or hair cells in the inner ear are damaged?
Sensorineural hearing loss develops when the auditory nerve or hair cells in the inner ear are damaged. This type of hearing loss is typically permanent and can be caused by factors like aging, genetics, exposure to loud noise, and certain medical conditions.
What is the main sensory receptor in the ear?
The main sensory receptor in the ear is the hair cells located in the cochlea. These hair cells convert sound waves into electrical signals that are then transmitted to the brain via the auditory nerve, allowing us to perceive sound.
How can damaged hair cells in the ear be repaired or treated effectively?
Damaged hair cells in the ear can be treated effectively through techniques such as cochlear implants, hearing aids, and regenerative medicine. Cochlear implants can bypass damaged hair cells and directly stimulate the auditory nerve, while hearing aids amplify sounds to compensate for hearing loss. Regenerative medicine aims to repair or replace damaged hair cells through techniques such as stem cell therapy or gene therapy. These treatments can help improve hearing and restore function in individuals with damaged hair cells in the ear.
Where are Sound Vibration Are Converted In To Nerve Impulses?
Sound vibrations are converted into nerve impulses in the inner ear. The vibrations are detected by hair cells in the cochlea, which then stimulate the auditory nerve to send signals to the brain for processing and interpretation of sound.
Sounds entering the external auditory canal are eventually converted to nerve impulses via a chain of events?
Yes, sound waves travel through the external auditory canal and cause the eardrum to vibrate. These vibrations are then transmitted through the middle ear bones to the inner ear, where they stimulate hair cells in the cochlea. The hair cells convert the vibrations into electrical signals that are sent to the brain via the auditory nerve.
What is activated by the movement of the perilymph?
The movement of the perilymph activates the hair cells in the cochlea, which are responsible for detecting sound vibrations and transmitting auditory signals to the brain via the auditory nerve.
Sound waves from the air travel on the auditory nerve to the brain?
Sound waves enter the ear and strike the eardrum, causing it to vibrate. These vibrations are transmitted through the middle ear bones to the cochlea, where they stimulate hair cells to create electrical signals. These signals are then sent along the auditory nerve to the brain for processing.
Where do auditory nerve signals originate?
The auditory nerve, which is part of cranial nerve VIII or the vestibulocochlear nerve, connects the hair cells of the cochlea in the inner ear with the cochlear nucleus, located in the brainstem at the junction of the pons and medulla.
What are hair cells and what is their relationship to the auditory nerve?
the out hair cells (OHC)push against the tectorial membrane in response to efferent innervation from the CNS the seventh cranial nerve it's the inner hair cells (IHC) that provide the sense of hearing afferent innervation to the CNS the eighth cranial nerve
What is the route of the auditory nerve from you ear to your brain What parts of the brain does the auditory nerve travel?
The auditory nerve, also known as the vestibulocochlear nerve, transmits sound information from the cochlea in the inner ear to the brainstem. It travels through the brainstem and reaches the auditory cortex in the temporal lobe of the brain, where sound is processed and interpreted.
What happens when auditory ossicles vibrate the oval window and set the endolymph in motion?
The now fluid vibrations will stimulate the mecanoreceptors turning the vibrations into electrical energy which will then be sent by the auditory nerve (cranial nerve #8) to the brain for interpretation.
What ear structures has hair cells that relay sound waves to auditory nerve fibers?
The cochlea in the inner ear contains hair cells that help convert sound waves into electrical signals, which are then transmitted to the auditory nerve fibers. These hair cells play a crucial role in the process of hearing by detecting vibrations and sending signals to the brain for interpretation.
What part of the ear determines the pitch of a sound?
That would be the brain. The ear itself is only designed to transfer the wave frequency through the hair cells in the cocchlea to the auditory nerve. The auditory nerve sends the signal to the brain where it is interpreted.
What transmits impulses in the ear?
Impulses in the ear are transmitted by hair cells located in the cochlea. These hair cells convert sound vibrations into electrical signals that are then sent to the brain via the auditory nerve.
What structures carry action potentials caused by sound transduction?
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.
