Audiology Flashcards
What is the main function of the pinna?
b) Collecting and directing airborne sound waves
The middle ear amplifies sound by approximately:
c) 25 dB
The ossicular chain consists of the:
b) Malleus, incus, and stapes
Which of the following protects the middle and inner ear structures from damage due to loud sounds?
b) Stapedius muscle
The cochlea is responsible for:
c) Sensory transduction of sound waves
The scala media (cochlear duct) is filled with:
b) Endolymph
The role of outer hair cells in the cochlea is to:
b) Amplify vibrations and enhance frequency selectivity
Hearing loss caused by issues in the cochlea or auditory nerve is categorized as:
b) Sensorineural hearing loss
Which is the most common cause of noise-induced hearing loss?
b) Exposure to sounds above 85 dB over long periods
Which structure vibrates in response to sound waves and separates the outer ear from the middle ear?
a) Tympanic membrane
What is the main ion responsible for depolarization in hair cells?
b) Potassium
Which syndrome is characterized by progressive renal failure and hearing loss?
a) Alport syndrome
A patient with unilateral hearing loss and tinnitus is likely to be diagnosed with:
b) Vestibular schwannoma
The stapedial reflex is triggered by:
b) Loud sounds
Which type of hearing loss involves both conductive and sensorineural components?
c) Mixed hearing loss
What is a characteristic of presbycusis?
b) Loss of high-frequency sensitivity
Endolymphatic hydrops is associated with which condition?
c) Meniere’s disease
Which is a non-syndromic genetic cause of hearing loss?
b) GJB2 mutation
Otosclerosis primarily affects:
c) The ossicular chain
What is the primary diagnostic tool for measuring hearing thresholds?
c) Pure tone audiometry
Which fluid acts as a cushioning agent in the cochlea?
Perilymph
What structure in the cochlea is responsible for sensory transduction?
Organ of corti
Which syndrome includes partial albinism and hearing loss?
Waardenberg syndrome
The basilar membrane is:
What is the most common viral cause of congenital hearing loss?
CMV
A patient with pulsatile tinnitus and a reddish mass visible behind the tympanic membrane might have:
Tympanosclerosis is commonly associated with:
Which cranial nerve is involved in transmitting sound information to the brain?
What is the function of the tectorial membrane in the cochlea?
A notch in hearing sensitivity around 4 kHz is characteristic of:
Which drug is most likely to cause reversible hearing loss?
Which ototoxic drug causes high-frequency hearing loss that is usually irreversible?
The organ of Corti contains:
The process of impedance matching in the middle ear involves:
Congenital hearing loss due to maternal rubella is often:
The auditory pathway includes:
The vestibular system is located in:
Which condition is characterized by progressive hearing loss, tinnitus, and vertigo?
The stria vascularis is essential for:
Presbycusis primarily affects:
Which structure acts as a pressure equalizer in the ear?
Hearing loss due to temporal bone trauma is often:
Which test measures middle ear function?
Sensorineural hearing loss involving the central auditory nervous system results in:
A patient with conductive hearing loss from ossicular discontinuity is likely to have:
Which disease involves fluctuating low-frequency hearing loss?
Which type of hearing loss is typically associated with otitis media?
Noise-induced hearing loss primarily damages:
The auditory cortex is located in the:
Which condition may result from exposure to aminoglycosides?
