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14 Cards in this Set
- Front
- Back
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sound
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judge distance and location
acts on emotions communication |
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external ear
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auricle(catches sound)
auditory canal (lines with cilia, external acoustic meatus) tympanic membrane (eardrum amplifies) |
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otitis externa
presbycusis |
swimmers ear
eardrum less flexible with age |
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middle ear
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tensor tympani muscle and malleus bone
ossicles (malleus incus and stapes) stapedius muscle to oval membrane causes fluid waves eustachian tube |
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otitis media
mastoiditis ostosclerosis |
clogs with mucus and bacteria
moved to bone bone get scar todsue |
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inner ear
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fluid perilymph endolymph
vestibule for equilibrium cochlea (snail, structure, membranes, organ of corti-sound sensitive) |
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otitis interna
tonal gaps over amplification sensoneural hearing loss conductive hearing loss |
infection of inner ear
gaps in hearing (burnout) over loud inner ear issues outer and mid ear issues |
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high
mid low. Pitch |
scala tympani
helicotrema scala vestibuli |
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quality and purity
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depends on number of organ of Corti
1 organ of Corti is pure |
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amplitude
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loud is tall waves soft is short waves
measure in decibels |
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over amplification
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tympanic membrane is beaten not tapped
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static equilibrium
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in utricle of vestibule neurons fire cilia
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dynamic equilibrium
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in ampulla of semicircular canals cupula gel pressed on cilia for direction on movement direction and speed
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vestibular nystagmus
dizziness vertigo menieres |
eyes move with moving fluid
out of balance spinning sensation hear things vertigo dizziness can be stress related |
