17 cont. Flashcards
(6 cards)
What processes commonly cause conductive hearing disorders, which are the most common?
Problems in conduction are due to outer ear issues. Air pressure difference doesn’t get transferred from outside to inside oval window
Most common is wax in the outer ear canal. Tumors or objects stuck in this Canal can also cause conductive hearing loss.
What is the point of ‘tubes’ in your ears?
Tubes are used to removed gunk build up in the middle ear. They fall out after the ear drum heals itself.
What processes commonly cause sensorineural hearing disorders?
This is usually due to problems in the cochlea or hair cells in the cochlea not working.
It can also be due to noise induced issues or can be acquired through diseases such as scarlet fever, mumps and measles, meningitis. GET VACCINES
What is the general idea behind hearing aids?
Hearing aid - analog: amplify signal
Digital - analyze sound, amplify only frequency ranges in which you have deficits
Can make ear wax issues worse if hearing aid is in ear - better behind ear
Stigma attached to having hearing aids
What is the general idea that governs cochlear implants, how does the information from air vibrations get to the “normal” part of the auditory system, and which part is that?
External microphone captures sound
Speech processor converts sound to electrical signals
Implanted electrodes send signals to the auditory nerve
What type of hearing disorder may make people a candidate for cochlear implants? What is a requirement for a cochlear implant to work?
Sensorineural
for a cochlear impact to work you need the Cranial Nerve NVIII (Vestibular) to be in working condition
