auditory
parts of outer ear
pinna (auricle), external auditory meatus (ear canal), tympanic membrane (ear drum)-border between outer and middle ear
Eustachian tube
equalize air pressure between outside world and behind ear drum, one end in middle ear and other end In nasopharynx
cranial nerve Vll
facial nerve innervates stapedial muscle
wernickes area
first stop from auditory pathway to aud cortex where code is analyze in temporal lobe
in cerebral palsy articulation is affected bc of cranial nerve __
Xll (12)
parts of middle ear
other side of tympanic membrane, ossicular chain w malleus, incus, and stapes, air filled space
inner ear where is cilia
cilia planted in basilar membrane
why do kids get ear infections
the position of Eustachian tube
frontal lobe
executive function
in multiple sclerosis...
involving the neurons, covering around axons is myelin sheath, there's holes in it, symptoms are slurred speech or effect on phonological system, vocal folds not maintained sim to spasmodic dysphonia
parts of inner ear
cochlea and semicircular canals (center for equilibrium, vestibular system) fluid filled
traveling wave
bends hair cells, shearing cilia arranged tonotopic organization, basal end is high frequency sounds, wave has to go to apex too for low frequency sounds
cranial nerve Vlll
auditory fibers bundle to form auditory nerve
motor strip behind frontal lobe where we plan articulatory plan
what can help spasmodic dysphonia
its symptom is breathiness bc folds abduct, botox can help
cochlea
organ for hearing, fluid filled
high cut off low pass filter
basilar membrane
brocas aphasia
damage to frontal lobe, will have receptive lang but hard time w expressive lang
which cranial nerve has just sensory function
auditory nerve Vlll
what percent of ppl have lang/speech in processing in left hemisphere
90%
hearing system as transducer
changes one form of energy to another
Bells palsy
facial nerve, no acoustic reflex stapedial muscle see if contract or not
wernickes aphasia
damage to temporal lobe, poor receptive lang
cranial nerve ___innervates stylopharyngeal muscle for swallowing
brain stem
located at bottom of brain near back of skull, at brain stem is PNS entering or exiting spinal column