Term
| The cochlea makes 2 3/4 turns around a central core of spongy bone called what? |
|
Definition
|
|
Term
| the cochlea and semicircular canals are embedded bone known as what |
|
Definition
|
|
Term
| what is contained within the bony labyrinth |
|
Definition
|
|
Term
| the membranous labyrinth contains what |
|
Definition
| neural components for hearing and balance |
|
|
Term
| what are the neural components for hearling and balance |
|
Definition
| cochlea and semicircular canals |
|
|
Term
| the cochlear canal is divided into 3 compartments, what are they |
|
Definition
| cochlear duct (scala media), scala vestibuli, scala tympani |
|
|
Term
|
Definition
|
|
Term
| the scala vestibuli is lined by what |
|
Definition
|
|
Term
| the scala tympani is lined by what |
|
Definition
|
|
Term
| the cochlear duct, scala vestibuli, and scala tympani together represent what of the cochlea |
|
Definition
| lumen of the membranous labyrinth |
|
|
Term
| what lies between teh vestibular and basilar membranes |
|
Definition
|
|
Term
| the cochlear duct is separated from the scala vestibuli by what |
|
Definition
|
|
Term
| the cochlear duct is separated from the scala tympani by what |
|
Definition
|
|
Term
| the scala vestibuli and tympani are filled with what |
|
Definition
|
|
Term
| the cochlear duct is filled with what |
|
Definition
|
|
Term
| endolymph is found in the cochlear duct and where else |
|
Definition
| vestibular semicircular canals |
|
|
Term
| where does the scala vestibuli begin |
|
Definition
|
|
Term
| the oval window is associated with what |
|
Definition
| auditory ossicles of the middle ear and tympanic membrane |
|
|
Term
| the scala tympani ends where |
|
Definition
|
|
Term
| the scala vestibuli and tympani communicate with each other through what |
|
Definition
|
|
Term
| where is the helicotrema located |
|
Definition
|
|
Term
| sound travels through the external auditory meatus and what happens as a result |
|
Definition
| movement of the tympanic membrane |
|
|
Term
| movement of the tympanic membrane results in what? |
|
Definition
|
|
Term
| movement of the ossicles results in what |
|
Definition
| vibration of the oval window |
|
|
Term
| vibration of the oval window results in what |
|
Definition
| vibrations in the perilymph of the scala vestibuli |
|
|
Term
| what are the 3 ossicles of the ear in order? |
|
Definition
|
|
Term
| how does sound reach the tympanic membrane |
|
Definition
| via the external auditory meatus |
|
|
Term
| the organ of corti rests where |
|
Definition
|
|
Term
| the organ or corti consists of sensory hair cells and supporting cells, how are the hair cells distinguished? |
|
Definition
| row of inner and outer hair cells |
|
|
Term
| the hair cells of the organ of corti are embedded in what |
|
Definition
|
|
Term
| movement of what causes distortion of the stereocilia causing them to generate generator potentials |
|
Definition
|
|
Term
| movement of the basilar membrane in the organ of corti results in what |
|
Definition
| stereocilia generating generator potentials |
|
|
Term
| hair cells are associated with a network of cochlear axons, the cell bodies of which comprise what |
|
Definition
| cochlear (spiral) ganglion |
|
|
Term
| the fibers from the spiral ganglion form what |
|
Definition
| cochlear division of CN VIII |
|
|
Term
|
Definition
|
|
Term
| auditory fibers from CN VIII synapse on what type of neurons? |
|
Definition
|
|
Term
| auditory fibers from CN VIII synapse on second order neurons located where (2) and on what side? |
|
Definition
| ipsilateral ventral and dorsal cochlear nuclei |
|
|
Term
| Second order neurons located in the ventral and dorsal cochlear nuclei project how |
|
Definition
|
|
Term
| second order neurons located in the ventral and dorsal cochlear nuclei project bilaterally and ascend via what |
|
Definition
|
|
Term
| second order fibers that decussate do so where |
|
Definition
|
|
Term
| as lateral lemniscus fibers ascend the brainstem they may or may not synapse where (2) |
|
Definition
| superior olivary nucleus, nucleus of the lateral lemniscus |
|
|
Term
| in the midbrain the lateral lemniscus spread out to and envelop and synapse in what structure |
|
Definition
|
|
Term
| at what level do some fibers from teh contralateral side cross back to the other side |
|
Definition
| level of the inferior colliculi |
|
|
Term
| when fibers from the contralateral side cross back to the other side at the level of teh inferior colliculi, what does this do? |
|
Definition
| increase bilateral representation of auditory input |
|
|
Term
| fibers from the inferior colliculus course through what? |
|
Definition
| brachium of the inferior colliculus |
|
|
Term
| fibers from the inferior colliculus course through the brachium of the inferior colliculus and synapse where |
|
Definition
|
|
Term
| fibers exit the medial geniculate body as what |
|
Definition
|
|
Term
| auditory radiation fibers join what |
|
Definition
|
|
Term
| fibers that have joined the internal capsule end where (generally) |
|
Definition
|
|
Term
| fibers that have joined the internal capsule end where (specifically) |
|
Definition
| transverse gyri of heschl/primary auditory cortex |
|
|
Term
| information from ipsilateral ventral and dorsal cochlear nuclei projects how and where |
|
Definition
| bilaterally to lateral lemniscus |
|
|
