The opening which leads from the middle ear, and transmits vibrations from the Auditory Ossicles.
What is the Oval Window?
100
Hair cells transduce pressure into...
What is neural firings?
100
The amount of decibels lost in crossover going to the non-test ear.
What is interaural attenuation?
100
blue "x" and red "o" on the audiogram
What are air conduction symbols for the left ear (x) and right ear (o)?
100
Used to estimate communication function when testing.
What is speech audiometry?
200
The auditory portion of the inner ear. It is spiral shaped (2.5 turns in humans) and contains watery fluid.
What is the Cochlea?
200
The stereocila causes a change in...
What is voltage?
200
When a masking noise is so loud it crosses back to the test ear.
What is overmasking?
200
Displays the degree and nature of hearing sensitivity.
What is the audiogram?
200
This test requires familiarity with the word list used whenever possible.
What is speech recognition threshold?
300
An opening between the middle and inner ear, closed off by a membrane, which vibrates in opposite phase to that of the oval window membrane. It allows fluid in the cochlea to move.
What is the Round Window?
300
The miniscule hair bristles of the hair cell are...
What is stereocila?
300
0 dB HL
What is the interaural attenuation when using bone conducted headphones (aka a bone oscillator)?
300
Generates vibrations of the skull and stimulates the cochlea directly.
What is bone conduction?
300
The score of a patient who was able to repeat 18 out of 50 words on a speech recognition test correctly.
What is 36%?
400
This structure has a over 20,000 nerve receptors, each of which has a tiny hair cell that detects sound vibrations and translates them into signals for the brain.
What is the Organ of Corti?
400
The number of inner hair cells
What is 3500 inner hair cells
400
This occurs when the crossover can be heard by the non-test ear.
What is crosshearing?
400
Occurs as a result of an outer or middle ear disorder.
What is conductive hearing loss?
400
An examiner typically presents stimuli at about 30 to 40 dB SL for this test.
What is word recognition test (WRT)?
500
These two structures are filled with perilymph fluid, and conduct sound vibrations to the cochlea
What is Scala Tympani and Scala Vestibule?
500
The number of outer hair cells
What is 12,000 outer hair cells
500
Describe masking.
What is e process by which the threshold of a sound is elevated by the simultaneous introduction of another sound.
500
A type of pathology that involves the VIIIth nerve or the auditory brainstem.
What is retrocochlear?
500
A decrease in word recognition ability with an increase in intensity. This is suggestive of retro-cochlear sit of lesion.