Hearing

A 45-year-old male presented to the otolaryngology clinic with complaints of gradual hearing loss in his left ear over the past several months. The patient reported difficulty understanding speech, particularly in noisy environments, and occasional episodes of tinnitus. Audiometric testing revealed sensorineural hearing loss, characterized by reduced hearing sensitivity and poor speech discrimination. Which cranial nerve is likely involved in this patient's condition?

• CN I

• CN IX

• CN VII

• CN XI

• CN VIII

When it comes to sound, pitch is measured in ___ whereas loudness or intensity is measured in ___.

• Frequency and Amplitude

• Decibels and Hertz

• Kilohertz and Megahertz
• Amplitude and Frequency

• Ohms and Amperes

Tags

NGSS.HS-PS4-1

What would be an example of conductive hearing loss?

• A ruptured eardrum
• Listening to loud music
• Excessive ear cleaning
• A buildup of earwax blocking the ear canal
• Genetic hearing loss

In auditory diagnostics, the Weber Test checks for ___ whereas the Rinne Test checks for ___.

• Bone conduction, lateralization sensitivity

• Auditory acuity, lateralization detection

• Vestibular function, tinnitus

• lateralization of sound, air and bone conduction
• Tinnitus, vestibular dysfunction

A 70-year-old male presented to the audiology clinic with complaints of gradually worsening hearing loss over the past decade. The patient reported difficulty understanding speech, especially in noisy environments, and often required others to speak louder or repeat themselves. Audiometric testing revealed bilateral sensorineural hearing loss, particularly affecting high-frequency sounds. What is this patient's diagnosis?

• Conductive hearing loss
• Presbycusis
• Tinnitus
• Meniere's disease
• Otitis media

A 45-year-old female presented to the otolaryngology clinic with complaints of recurrent episodes of vertigo, fluctuating hearing loss, tinnitus, and a sensation of fullness or pressure in her right ear. The patient reported experiencing disabling vertigo attacks lasting several hours, often accompanied by nausea and vomiting. Audiometric testing revealed sensorineural hearing loss in the affected ear, and vestibular function testing would confirm what condition?

• Labyrinthitis
• Benign paroxysmal positional vertigo
• Otosclerosis
• Meniere's disease
• Acoustic neuroma

Within the cochlea, the more proximal regions near the stapes and oval window perceive ___ whereas the more distal region in the apex perceive ___.

• High frequencies; Low frequencies
• High frequencies; Middle frequencies
• Middle frequencies; High frequencies
• Low frequencies; Middle frequencies
• Low frequencies; High frequencies

Which principal structure within the organ of Corti move as a consequence of sound waves directly resulting in the perception of sound?

• stereocilia

• tectorial membrane
• vestibular hair cells
• auditory nerve fibers
• basilar membrane

In the organ of Corti, when hair bundle is deflected toward the tallest stereocilium, what ion channel is responsible for depolarization at the onset?

• Sodium channel
• Potassium channel
• Calcium channel
• Chloride channel
• Magnesium cannel

In audio perception, what defines a chord?

• A single note played alone.
• Response to several combination frequencies

• A combination of notes played in different octaves.
• Sinusoidal stimuli at a specific frequency

• A sequence of notes played one after the other.