Review for exam 2 Flashcards
what form of energy is used in the cochlea?
hydrodynamic energy and electrochemical energy as it goes up the auditory nerve
• disorder characterized by a sudden unilateral hearing loss, tinnitus, vertigo
Meniere’s disease
The use of summing or averaging computers to observe the very small electrical responses to sound front eh cochlea, brain stem, and cortex
auditory evoked potentials
difference between speech recognition and word recognition
speech recognition measured in decibels and word recognition measured in percentage
speech recognition threshold uses
spondi words
word recognition uses only _____
one syllable word
a rapid test to detect auditory processing disorders?
Screening test for auditory processing disorders
What is an acoustic neuroma?
a benign tumor involving the nerve sheath of the auditory nerve
Ototoxic medication most frequently affect low or high frequencies?
high frequencies because they are closer to opening of cochlea
What is the purpose of bone conduction audiometry?
Tests function of inner ear it tests the cochlea
The are at the base of the brain at the junction of the cerebellum, medulla and pons?
cerebellopontine angle
Two syllable term with equal stress on both words
spondee
What is an air bone gap?
Difference between air conduction and bone conduction
Find that bone conduction is better than air conduction
What is presbycusis?
Loss of hearing due to aging process
Why is it impossible for bone conduction to be worse than air conduction?
Air conduction is testing the whole system
Bone conduction shouldn’t be any worse than the entire system
What is the term binaural mean?
listening with both ears to either the same or different stimuli
what is done to determine that the equipment is functioning according to specifications?
calibration
a patient who signals that a tone was hard when no tone was presented is given what type of response?
False positive
Why should diagnostic testing be conducted in a sound booth
To keep the background noise from making it look like a hearing loss
What type of hearing loss is considered a medical emergency?
sudden hearing loss
The graph on which a hearing test is plotted
audiogram
Name three symptoms of an acoustic neuroma
vertigo
tenitus
unilateral hearingloss sensorineural
The lowest level at which a person knows a person is talking
speech detection threshold/speech awareness threshold
What is vestibule?
Cavity of inner ear containing the organs of equilibrium and giving access to the cochlea
Cross hearing occurs by air conduction or bone conduction?
Both
The loss of energy of a sound introduced by one ear and heard by the other
Interaural attenuation
What is auditory neuropathy spectrum disorder?
normal outer hair cell function in cochlea, but the responses on the VIIIth nerve that carries electrical signals to the brain fail to occur in synchrony.
What types of words are used for measuring the speech recognition threshold?
One syllable word Phonetically balance
What does the term monaural mean?
one ear
The portion of the inner ear that is responsible for hearing is called what?
cochlea
The two fluids found in the inner ear
endolymph
perolymph
A noise induced hearing loss frequently results in a notch (drops and comes back up) at what frequency?
4000 Hz
What is the difference between an SAT and an SRT?
SRT is speech recognition
sat is speech awareness
The basilar membrane supports the _____ ___ _____
organ of corti
