Parts of the Ear
What structure is #2 pointing at? What is its function?
Pinna
Function:Collects sound waves and channels them into the ear canal.
What information does an audiogram display?
A persons hearing status for each ear. Displays different frequencies and decibels that the patient may or may not have hearing loss at.
Which hearing test involves using a tuning fork?
What is frequency?
Also called Pitch, this is the number of times per second a sound wave repeats itself.
What is conductive hearing loss? What part of the ear is affected?
The outer and middle ear are affected. Conductive hearing loss occurs when sound cannot travel through the outer or middle ear.
What structure is #4 pointing at?
What is its function?
Auditory Canal
Function: Helps to amplify the sound.
Audiograms help to display what form of hearing loss?
Sensorineural Hearing loss
Which type of hearing loss would a speech in noise test help to diagnose?
Sensorineural Hearing loss
What is amplitude?
Also called loudness, this is the strength of the sound wave. The taller the wave the louder the sound.
What is sensorineural hearing loss? What parts of the ear are affected?
Damage to the inner ear, or the nerve from the inner ear to the brain.
What is structure #8?
What is its function?
Semicircular Canals
Function: Help to keep you balanced.
Looking at an audiogram, if their data is plotted between 0-20 decibels, what type of hearing do they have?
Normal hearing
A rinne test diagnoses which type of hearing loss?
Conductive Hearing loss
If a sound wave has many waves passing through in 1 second, what could be said about the sound?
The sound would be a high pitch
What could be a cause of sensorineural hearing loss?
Old age
Prolonged exposure to loud noises
What structure is #9?
What is its function?
Cochlea
Function: Plays a large role in auditory transduction. Sound waves are transduced into electrical impulses to the brain.
On which axis would you find: Frequency in Hertz
X axis, along the top
A pure tone test measures what about a patient?
Think back to the pure tone test that you did, what did each of the buttons you push measure?
Pure tone tests measure the degree of hearing loss a person has for multiple different frequencies.
If the sound wave had very high amplitude, what could be said about the sound?
The sound would be very loud
Which form of hearing loss can be treated and in most cases cured?
Conductive hearing loss. Most cases can be treated with medication or surgery.
What structure is #1?
What is its function?
Tympanic Membrane
Function: Separates the outer and middle ear. Sound vibrations are transferred through this membrane to the bones behind, allowing the sound to travel.
On which axis of the graph would you find: hearing in decibels?
Y axis, along the side of the graph
What form of hearing loss does a pure tone test diagnose?
Pure tone tests are able to diagnose both sensorineural and conductive hearing loss. It can also determine how much of each type of hearing loss that a patient has.
If there are 8 waves coming through in 1 second, what would be the measurement of that sound?
Figure out is this frequency or amplitude, then determine the label that needs to be used.
8 Hertz
Which hearing test creates an audiogram for reference?
Pure tone test