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Audiology

Pictures - Labeling Ear Inside and Outside

QuestionAnswer
A lesion is present in the inner ear and the VIII N. This is which type of hearing loss? sensorineural
Tubes that are closed at one end (like the ear canal) resonate to a frequency That has a wavelength 4 times the length of the tube
Cerumen is formed from sebacious glands, arocrine glands, eccrine glands, cellular debris/ hair
Using audiometry is has been determined that your bone conduction thresholds are normal, but if you have a 40dB loss by air conduction. This type of hearing loss you have is conductive (using audiometry)
Using an otoscope you could observe the cone of light
If the audiogram shows a hearing loss, you could have a normal tympanogram
A doorbell is judged to be equally loud as a 1000-Hz tone at 65 dB SPL. A dog barking has a loudness of 75 phones. You conclude that the dog is about twice as loud as the doorbell
Using audiometry it has been determined that your bone conduction thresholds show a 30 dB hearing loss, and you have a 50 dB loss by air conduction. The type of hearing loss you have is mixed
The child has a sensorineural hearing loss. Which tympanogram type would you predict? Type A (normal peak admittance, normal middle ear pressure)
Earwax normally is externalized by the growth pattern of tissue in the ear canal
The pH of the tissue lining the ear canal is higher than normal making an external otitis more probable
An ear infection caused by bacteria is an acute otitis
The cone of light is considered to be associated with the eardrum
A lesion is present in the outer ear and the middle ear. This is which type of hearing loss? conductive (lesion is present)
The ear canal is "S" shaped. protecting the eardrum from objects inserted into the canal
Hearing screening (for children 6 years and older) is designed to detect hearing loss greater than? 20 dB, but only for frequencies at and above 1000 Hz
There are two middle ear muscles the tensor tympani and the stapedius muscle
The cochlea is fluid filled and contains the membranous labyringth
The difference between performing hearing screening on an adult (> 18 years of age) and children is that adults need to be screened at 25 dB HL
What are the risk factors for middle ear disease? attendance in day care programs, bottle feeding babies, exposure to second hand smoke
On the initial screen an 8 year old has compliance (Ytm) of 0.2 mmho and tympanometric width of 300 daPa, so you recommend retesting in 6 - 8 weeks
The automated ABR and OAEs are procedures recommended for screening neonates
Which condition would allow in phase sound to strike the oval and round window simultaneously? a perforation
The part of the eardrum where cholesteatomas often begin to grow is in the pars flaccida
Long standing secretory otitis media increases chances that a cholesteatoma might develop, may have adverse effects upon speech-language development, should be treated with tympanostomy tubes
Removing hair cells would result in sensorineural hearing loss
The elastic pressure release for inward motions of the footplate of the stapes is found in outward movement of the round window
Cytomegalovirus (CMV), syphilis, and rubella are all causes of prenatal or perinatal hearing loss
Ménière's disease and central presbycusis are both similar in that a type A tympanogram should be found
The structure important for shearing the hair cell stereocilia is the tectorial membrane
The organ of Corti is about 3 mm long, is located in scala media, is located within the membranous labyrinth
A hearing loss caused by ingestion of an aminoglycoside antibiotic is ototoxicity
Endolymph is contained within the membranous labyrinth
The auditory brainstem response (ABR) is abnormal, often absent, when a tumor is present in the internal auditory meatus
If you were to lose all of your outer hair cells there would be about a 40 to 50 dB hearing loss
Within the cochlea, high frequencies are analyzed at the basal end
If a 100 Hz tone is delivered to the ear and individual nerve fibers fire 100 times per second, this is an explanation of how low frequency tones are perceived, by temporal activity in the cochlear nerve
As the traveling wave moves down the organ of Corti it moves from the basal end to the apical end of the cochlea
Created by: brazil
 

 



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