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39 Cards in this Set
- Front
- Back
Sound impulses pass through what? (p.17)
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Auditory tract
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Test human hearing by what two sound pathways?
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Air conduction and bone conduction (p.17)
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Tuning fork tests compare what 4 things? (p. 17)
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1. Hearing of patient to "normal" hearing of examiner
2. Relative sensitivity by air conduction and bone conduction 3. Effects on bone conduction of closing the opening into the ear 4. Lateralization of sound to one ear or the other by bone conduction |
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Describe the parts of the outer ear (p. 18)
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Shell-like protrusion from each side of the head with a canal through which sound travels with the tympanic membrane at the end of the canal
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Middle ear consists of what? (p. 18)
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Air filled space with a chain of tiny bones
3rd is the stapes (smallest bone) |
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Portion of the inner ear that is responsible for hearing is?? (p.18)
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Cochlea
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Cochlea is responsible for what?
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hearing!
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Fluids in the cochlea convert waves into a message that travels to the brain stem via the what?? (p. 18)
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Auditory nerve
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True or False?
How is brain stem is connected to highest auditory center in the cortex? (p. 18) |
By a series of waystations that recieve, analyze and transmit impulses along the auditory pathway
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How do audiologists separate the ear?
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Conductive portion and sensory/neural portion
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What does the conductive portion consist of? (p. 18)
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outer and middle ears
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Sensory/neural portion consists of what?
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inner ear and auditory nerve
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Any sound that courses through the outer ear, middle ear, inner ear and infinity and beyond is heard by what?
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air conduction
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How is sound heard by bone conduction?
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Bypassing outer and middle ears by vibrating the skull mechanically and stimulating the inner ear directly
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Air conduction depends on functioning of what? (p.20)
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outer, middle and inner ear and neural pathways and beyond
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Hearing by bone conduction depends on functioning of what?
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Inner ear and infinity and beyond
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The impaired air conduction with normal bone conduction is known as what? (p.20)
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Conductive hearing loss
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Sensory/neural hearing loss is determined when what happens? (p. 20)
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When a hearing loss exists in which there is the same amount of attenuation for both air conduction and bone conduction
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True or False? Conductive hearing loss can be as bad as sensory/neural hearing loss (p. 20)
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True
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Malingering (p. 21)
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faking hearing loss
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Psychogenic hearing loss (p. 21)
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psychological disorder whose manifested in the symptom of hearing loss
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The Schwabach test is what kind of test?
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Bone conduction
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What is the mastoid process and how is it used in a bone conduction test? (p.23)
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Bony protrusion behind ear where tuning fork is set into vibration
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Interpretation of the Schwabach test results is difficult interpret in cases of what type of hearing loss? (p.23)
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Mixed hearing loss
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Why is it hard to interpret mixed hearing loss with the Schwabach test? (p.24)
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Because both the inner ears are very close together and embedded in the bones of the skull
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Performance of the Rinne test compares what? (p. 24)
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The patients' hearing sensitvity by bone conduction to their sensitivity to air conduction
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What kind of air conduction is a more efficient means of sound transmission to the inner ear?
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air conduction
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What is a positive Rinne? (p. 24)
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When people with normal hearing hear tuning fork sound best next to their ear
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Describe a negative Rinne test (p. 24)
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When people hear sound better BEHIND the ear
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Why does a false negative occur? (p. 24)
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Because their bone conduction is normal. They will hear a louder tone with the stem of the fork behind the ear.
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Describe the occlusion effect (p. 24)
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When those with normal hearing close off the opening into the ear canal and the loudness increases
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The occlusion effect is observed primarily with what type of sounds? (p.24)
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low pitched sounds
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The occlusion effect is evident in patients with what type of hearing loss? Which types of hearing loss is it not evident in?
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Evident in sensory/neural hearing loss
Not evident in conductive hearing loss |
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Bing Test (p. 25)
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Normal hearers and those with sensory/neural hearing loss can hear pulsating sound when they open and close opening into hearing canal (conductive cannot hear this)
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In the Weber test, people with normal hearing or equal amounts of the same type of hearing loss, will report...(p. 25)
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a midline sensation
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In the Weber test, patients with sensory/neural hearing loss in one ear will hear the tone in which ear? (p.25)
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the better ear
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In the Weber test, patients with conductive hearing loss in one ear will hear the tone in which ear? (p.25)
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the poorer ear
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The Stenger principle (p.25)
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If 2 tones are identical except in loudness and introduced in both ears, only the louder tone will be perceived
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Weber test is difficult in which instances? (p. 25)
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1. Mixed hearing loss
2. Those with conductive hearing loss in one ear |