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CNHP

Chapter 6

question/term answer/definition
the ear is divided into how many regions? three (external, middle, internal)
external ear includes the auricle (pinna) and external acoustic meatus
auricle directs sound waves
external acoustic meatus passageway inward toward tympanic membrane
middle ear region between external acoustic meatus and internal ear, includes tympanic membrane
what happens when sound waves reach the tympanic membrane? this transmits sound vibrations to the auditory ossicles , which are then transmitted to the oval window, stimulating auditory fluids in the internal ear
auditory ossicles malleus, incus, stapes
what connection maintains equal air pressure? the auditory (eustachian) tube to the pharynx (throat)
internal or inner ear= labyrinth
labyrinth -receives and passes sound vibrations through the semicircular canals and vestibule to spiral organ (Corti) within the cochlea, which then generates and transmits nerve impulses to the brain for processing
what is one way body equilibrium is maintained? by the stimulation of nerve impulses resulting from movement or changes in position
acous/o, audi/o hearing
aer/o air or gas
aur/l, ot/o ear
cerumin/o wax
myring/o, tympan/o eardrum
salping/o tube
-acusis hearing condition
BAEP brainstem auditory evoked potential
BAER brainstem auditory evoked response
ENT ear, nose, throat
PE polyethylene
TM tympanic membrane
otitis externa inflammation of the external ear canal
otitis media inflammation or infection in middle ear
the Rinne tuning fork test compares which two types of conduction? bone conduction and air conduction
bone conduction tuning fork is placed behind the ear (mastoid bone)
air conduction tuning fork is placed beside the ear
cochlear implant -sound converted into digital signals which are sent to the internal implant -internal implant converts signals into electrical energy -> electrode array in cochlea -electrodes stimulate hearing nerve -brain perceives signals to hear sound
what cells are bypassed in the mechanism of a cochlear implant? damaged hair cells
Created by: fhira1
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