Podcast
Questions and Answers
A patient reports difficulty hearing after a head injury. An audiogram reveals normal cochlear function but impaired sound localization. Where is the most likely location of the hearing loss?
A patient reports difficulty hearing after a head injury. An audiogram reveals normal cochlear function but impaired sound localization. Where is the most likely location of the hearing loss?
- Cochlea
- Brain (correct)
- Middle ear
- Auditory nerve
An elderly patient experiences gradual hearing loss, and an otoscopic examination reveals excessive cerumen (earwax) blocking the ear canal. What type of hearing loss is most likely?
An elderly patient experiences gradual hearing loss, and an otoscopic examination reveals excessive cerumen (earwax) blocking the ear canal. What type of hearing loss is most likely?
- Central hearing loss
- Nerve hearing loss
- Auditory processing disorder
- Conduction hearing loss (correct)
A factory worker who consistently operates loud machinery without ear protection begins to experience hearing loss. Which mechanism is the most likely cause?
A factory worker who consistently operates loud machinery without ear protection begins to experience hearing loss. Which mechanism is the most likely cause?
- Damage to the ossicles in the middle ear.
- Impairment of auditory nerve function.
- Lesions in the auditory cortex.
- Destruction of hair cells in the cochlea. (correct)
A patient presents with hearing loss following a viral infection that specifically targeted the inner ear. Which structure is most likely affected, leading to their hearing impairment?
A patient presents with hearing loss following a viral infection that specifically targeted the inner ear. Which structure is most likely affected, leading to their hearing impairment?
A child is born with a malformation of the middle ear bones. What type of hearing loss would this congenital condition most likely cause?
A child is born with a malformation of the middle ear bones. What type of hearing loss would this congenital condition most likely cause?
Flashcards
Conduction Hearing Loss
Conduction Hearing Loss
Hearing loss resulting from issues in the outer or middle ear, preventing sound from reaching the cochlea.
Nerve Hearing Loss
Nerve Hearing Loss
Hearing loss due to damage to the hair cells in the cochlea or the auditory nerve itself.
Central Hearing Loss
Central Hearing Loss
Hearing loss resulting from damage to the auditory centers of the brain.
Conduction Deafness: Cause
Conduction Deafness: Cause
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Nerve Deafness: Cause
Nerve Deafness: Cause
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Study Notes
- Deafness results from alterations at any stage of the auditory system.
- These changes can occur in the:
- External Ear
- Middle Ear
- Cochlea
- Auditory Nerve
- Brain
Conduction Hearing Loss
- This is due to issues in how sound travels via the outer or middle ear to the cochlea.
Nerve Hearing Loss
- This is due to harm of hair cells, or in the auditory nerve.
Central Hearing Loss
- This stems from brain injury.
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Description
Hearing loss can arise from alterations in the auditory system, affecting the external ear, middle ear, cochlea, auditory nerve, or brain. Conductive hearing loss involves issues in sound transmission to the cochlea, while nerve hearing loss results from damage to hair cells or the auditory nerve. Central hearing loss stems from brain injury.
