Inner Ear – Hearing Test 1
The key terms of Hearing test 1 include, Inner Ear.
Two sections of inner ear
Choclea
vestibular system
Functional
Loss with no organic disorder detected
Nonorganic
Apparent loss with no known disorder or insufficient evidence to explain it
Scala tympani starts where and what fluid
Round window
Periymph
Ototoxcity – 5 categories
Medications that cause damage to chochlea/vestib system
aminoglycosides
chemotherapy drugs
loop diuretics
salicylates
anti-malarial drugs
Nerve fibers of the CANS
Go from bottom of organ of corti into modiolus
form bundle of fibers which is the auditory nerve/cochlear nerve
Later causes of inner ear disorder
Infections
ototoxicity
noise
sudden hearing loss
meniere’s disease
temporal bone fracture
presbycusis
Scala vestibuli starts where and what fluid
Oval window
Perilymph
Choclea functions
Transduction
frequency analysis
Semicircular canals sense
Rotation
one for each plane of movement
Symptoms of vestibular disturbance
Vertigo
nystagmus
anxiety
rapid heart rate
nausea and vomiting
Nystagmus
Involuntary rhythmic eye movement
– Usual
Two sections of inner ear
Choclea
vestibular system
Functional
Loss with no organic disorder detected
Nonorganic
Apparent loss with no known disorder or insufficient evidence to explain it
Scala tympani starts where and what fluid
Round window
Periymph
Ototoxcity – 5 categories
Medications that cause damage to chochlea/vestib system
aminoglycosides
chemotherapy drugs
loop diuretics
salicylates
anti-malarial drugs
Nerve fibers of the CANS
Go from bottom of organ of corti into modiolus
form bundle of fibers which is the auditory nerve/cochlear nerve
Later causes of inner ear disorder
Infections
ototoxicity
noise
sudden hearing loss
meniere’s disease
temporal bone fracture
presbycusis
Scala vestibuli starts where and what fluid
Oval window
Perilymph
Choclea functions
Transduction
frequency analysis
Semicircular canals sense
Rotation
one for each plane of movement
Symptoms of vestibular disturbance
Vertigo
nystagmus
anxiety
rapid heart rate
nausea and vomiting
Nystagmus
Involuntary rhythmic eye movement
– Usual
Two sections of inner ear
Choclea
vestibular system
Functional
Loss with no organic disorder detected
Nonorganic
Apparent loss with no known disorder or insufficient evidence to explain it
Scala tympani starts where and what fluid
Round window
Periymph
Ototoxcity – 5 categories
Medications that cause damage to chochlea/vestib system
aminoglycosides
chemotherapy drugs
loop diuretics
salicylates
anti-malarial drugs