Middle Ear
What are the three bones in the middle ear?
Malleus, Incus, Stapes
What tool allows you to visually examine tympanic membrane and eardrum?
Otoscope
The non-test ear
what condition can cause fluid buildup and pressure imbalances?
Eustachain Tube Dysfunction
Ossicular Chain Disruption
Patient: Devon, 19
Issue: Sudden hearing loss after head injury.
Medical: Surgical repair may be needed to restore function.
Communication: Sudden loss affects learning and interaction.
What is the purpose of the middle ear?
Transmitting and amplifying sound and equualizing pressure
What tool measures movement of the tympanic membrane and ear pressure using probe tone and air pressure?
Tympanometry
What term is used when not enough masking is presented?
Yes
Tympanic Membrane Perforation (Ruptured Eardrum)
Patient: Grace, 10
Issue: Hearing loss after a loud fireworks blast.
Medical: Risk of infection and long-term damage.
Communication: Difficulty understanding speech in class.
what condition causes abnormal bone growth typically around the stapes?
otosclorosis
What test is pure tone, speech audiometry, and bone conduction used with?
Audiometer
What is the minimum difference in hearing thresholds between ears when masking is usually needed for air conduction?
40 dB
What can be causes of a perforated eardrum?
Injury, Infection, or pressure changes
Otosclerosis
Patient: Anna, 28
Issue: Gradual hearing loss, no infections.
Medical: Progressive, may affect inner ear.
Communication: Trouble understanding speech, especially in noisy places.
what part of the inner ear allows sound to enter middle ear?
Oval Window
Which test can assess fluid buildup?
Tympanometry
What type of noise is used during pure-tone air conduction?
Narrowband Noise
True or false: Ear drum perforation cannot be resolved
False
Cholesteatoma (Skin Cyst in Middle Ear)
Patient: Riley, 42
Issue: Smelly ear discharge, hearing loss.
Medical: Can lead to infection, damage to facial nerve or brain.
Communication: Hearing loss impacts work and social life.
What muscle dampens vibrations to protect inner ear from loud sounds?
Stapedius Muscle
What is Immittance?
The ears resistance to the passing of sound waves
Impedance- resistance to sound energy flow
Admittance- ease of sound energy flow
What is the term for how much a sound gets weaker when it travels from one ear to the other during a hearing test?
Interaural Attenuation
What muscle can cause clicking, buzzing, or fluttering noises?
Stapedius Muscle
Eustachian Tube Dysfunction
Patient: Sarah, 30
Issue:Feels ear fullness and muffled hearing, worse during flights and after colds.
Medical: Can lead to fluid buildup or ear infections.
Communication: Muffled hearing makes conversations harder, especially in groups.