The softest sound a person can hear 50% of the time.
What is threshold?
200
The structure responsible for equalizing pressure and maximizing TM mobility.
What is the Eustachian tube?
200
Occurs as a result of an outer or middle ear disorder.
What is conductive hearing loss?
200
The sensory receptors known as superior, posterior, and lateral in the vestibular system.
What are the semicircular canals?
200
blue "x" and red "o" on the audiogram
What are air conduction symbols for the left ear (x) and right ear (o)?
300
The smallest perceivable difference between two sounds.
What is difference limen?
300
The inner ear or cochlea is housed here.
What is the temporal bone?
300
Generates vibrations of the skull and stimulates the cochlea directly.
What is bone conduction?
300
The sensory cells that provide input to the vestibular nerve in the otoliths.
What is macula?
300
Displays the degree and nature of hearing sensitivity.
What is the audiogram?
400
The difference between the softest sound we can hear and the point where it is so loud it is uncomfortable.
What is dynamic range?
400
Name the three ducts of the cochlea.
What is the scala vestibuli, the scala media, and the scala tympani?
400
A device you use to look into a patient's ear.
What is an otoscope?
400
The sensory cells in the semicircular canals responsible for angular acceleration.
What is ampulla?
400
Used to estimate communication function when testing.
What is speech audiometry?
500
For clinical purposes, this curve is converted into a graph known as the audiogram.
What is the minimum audibility curve?
500
How the inner ear or cochlea is organized (i.e. the basal end of the cochlea corresponds to high frequencies)
What is tonotopically?
500
A type of pathology that involves the VIIIth nerve or the auditory brainstem.
What is retrocochlear?
500
Any motion that causes the stereocilia to move toward the kinocilium results in an increase in electrical activity and has an excitatory influence on nerve function.
What is depolarization?
500
Encompasses both impedance and admittance of a vibratory system.