Term
| the outer ear is composed of what 2 sturcutres |
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Definition
| external auditory meatus, pinna |
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Term
| vibrations are transmitted through the air to what |
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Definition
|
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Term
| what separates the middle from the outer ear |
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Definition
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Term
| vibrations at the tympanic membrane are transmitted via what to the inner ear |
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Definition
|
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Term
| what is the ossicle that is attached to the tympanic membrane |
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Definition
|
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Term
| what transmits the vibrations from the malleus to the stapes |
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Definition
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Term
| the footplate of the stapes is connected to what |
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Definition
|
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Term
| zone at which bony vibration is converted to pressure waves within the fluid of the inner ear |
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Definition
|
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Term
| what is the role of the ossicle system |
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Definition
|
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Term
| sound waves are increased in energy by a factor of nearly what as vibrations pass from teh outer ear to the inner ear |
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Definition
|
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Term
| ultimate receptor of acoustic stimuli |
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Definition
|
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Term
| bony center of the cochlea |
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Definition
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Term
| the cochlear canal is divided into how many chambers |
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Definition
|
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Term
| what are the 3 chambers of the cochlear canal |
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Definition
| scala vestibuli, cochlear duct, scala tympani |
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Term
| which cochlear canal chamber is aligned with the oval window at the base of the cochlea |
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Definition
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Term
| what is the superior 3rd of the cochlear canal |
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Definition
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Term
| the scala vestibuli is separated from teh cochlear duct by what |
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Definition
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Term
| the scala vestibuli is continuous with the scala tympani at this aparture |
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Definition
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Term
| sound vibrates the air, these vibrations enter what first |
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Definition
|
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Term
| the external auditory meatus carries sound to what strcuture |
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Definition
|
|
Term
| the tympanic membrane transmits vibrations to what next |
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Definition
| ossicles (malleus to incus to stapes) |
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Term
| the ossicles transmit sound vibration to where next |
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Definition
|
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Term
| the oval window transmits vibrations to where |
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Definition
|
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Term
| the scala vestibuli transmits the vibrations where next |
|
Definition
| through the basilar membrane |
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Term
| vibrations travel through the basilar membrane to where next |
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Definition
|
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Term
| inferior chamber of the cochlear canal |
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Definition
|
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Term
| the scala tympani is separated from the cochlear duct by what |
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Definition
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Term
| scala tympani and scala vestibuli are both filled with what |
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Definition
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Term
| the round window is aligned with what structure |
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Definition
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Term
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Definition
| prevent undue dampening of acoustic waves traveling within the fluid of the cochlea |
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Term
| intermediate chamber of the cochlea |
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Definition
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Term
| cochlear duct houses this specialized organ |
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Definition
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Term
| cochlear duct contains what type of fluid |
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Definition
|
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Term
| what secretes endolymph within the cochlear duct |
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Definition
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Term
| what does the organ of corti consist of |
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Definition
| basilar membrane upon which sits two rows of hair cells and some non-neural supporting cells |
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Term
| what is the role of the hair cells of the organ of corti |
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Definition
| transduce acoustic energy to neural signals |
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Term
| the cilia of the hair cells of the organ or corti are embedded in what |
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Definition
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Term
| the distortion of hair cells results in what |
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Definition
| generator potentials that may result in action potential formation at the dendrites of cochlear nerve fibers |
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Term
| cell bodies of the cochlear nerve are located where |
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Definition
| cochlear (spiral) ganglion |
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Term
| the cochlear (spiral) ganlgion is embedded in what |
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Definition
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Term
| peripheral processes of teh cochlear nerve synapse with what |
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Definition
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Term
| central processes of the cochlear nreve form what |
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Definition
| cochlear (auditory) nerve (CN VIII, cochlear division) |
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Term
| role of the superior olivary nucleus: 1st role |
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Definition
| processing of auditory information for localization of sound |
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Term
| role of the superior olivary nucleus: 2nd role |
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Definition
| send efferent axons to CN VIII that synapse on outer hair cells of the cochlea and some spiral ganglion dendrites, modulates sound transduction |
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Term
| axons from the medial geniculate body synapse on what lobe |
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Definition
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Term
| axons from the medial geniculate body synapse in the temporal lobe on what |
|
Definition
| transverse temporal gyri of Heschl |
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Term
| where is the transverse temporal gyri of heschl located |
|
Definition
| superior temporal gyrus within the lateral fissure |
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|
Term
| destruction of auditory cortex on one side will usually result in what |
|
Definition
| impairment of the ability to localize sound |
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