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Test 1 Review Questions
Terms in this set (29)
the study of hearing
someone who studies hearing
the medical speciality concerned with diseases of the ear
When did audiology develop as a field and what were the circumstances? someone who studies hearing
After WWII b/c many service personnel had a prevalence of hearing loss
Identify Raymond Carhart:
founder of audiology coined the term audiology
Identify Norton Canfield:
together w/ Carhart helped coin the term
What is AAA?
American Academy of Audiology
What is ASHA?
American Speech Language Hearing Association
Briefly describe the three divisions of the ear.
outer ear-outermost portion of the ear, filled with air, whose primary function is to carry sounds to the middle ear
middle ear-air filled cavity containing a chain of three tiny bones whose function is to carry energy from the outer ear to the inner ear
nner ear-the portion of the hearing mechanism. buried in the bones of the skull, that converts mechanical energy to electrochemical energy for transmission to the brain
What is a conductive hearing loss?
loss of sound sensitivity produced by abnormalities of the outer and/ or the middle ear
What is a sensori-neural hearing loss?
formerly called perceptive or nerve loss; the loss of hearing sensitivity produced by damage or alteration of the sensory mechanism of the cochlea or the neural structures that lie beyond
What is a mixed hearing loss?
sensory/ neural hearing loss with superimposed conductive hearing loss. The air conduction level shows the entire loss; the bone conduction level, the sensory neural portion, and the air-bone gap, the conductive portion.
Briefly describe the Schwabach Test:
Tuning fork test that compares an individual's hearing by bone conduction with the hearing of the examiner (who is presumed to have normal hearing)
Describe the Rinne Test:
Tuning fork test that compares hearing by air conduction with hearing by bone conduction
What is indicated by a positive Rinne?
louder at the ear for normal hearing and sensory/neural; A negative Rinne? Louder behind the ear for a conductive loss
Describe the Bing Test:
A tuning fork test that utilizes the occlusion effect to test for the presence or absence of the bones of the skull
What is indicated by a positive Bing? Tone is louder with ear occluded in normal and sensory/neural loss A negative Bing? loudness does not change with ear occluded
Tone is louder with ear occluded in normal and sensory/neural loss A negative Bing? loudness does not change with ear occluded
What is the occlusion effect?
The impression of increased loudness of a bone-conducted tone when the outer ear is tightly covered or occluded
Describe the Weber Test?
Tuning fork test performed in cases of hearing loss in one ear to determine if the impairment in the poorer ear is conductive or sensory/neural.
What is the Stenger principle? When two tones of the same frequency are presented to both ears simultaneously, only the louder one is perceived.
When two tones of the same frequency are presented to both ears simultaneously, only the louder one is perceived.
Sound is generated by vibrations and is carried through the air around is in the form of pressure waves. SOUND IS MOVEMENT.
Name and describe the two components of a sound wave.
compression-the portion of a sound wave where the molecules of the medium are compressed together.
rarefaction- the portion of a sound where the molecules becomes less densely packed per unit of space
What are the essentials for production of a sound?
Source of vibrator
Force or POWER needed to set vibrator into motion
Medium which is air
What is the unit of measurement for frequency?
the system that adds to what the vibrator produces
What is the speed of sound?
340.29 m / s
the relationship in time between two or more waves
the extent of the vibratory movement of a mass from its position of rest to that point farthest from the position of rest
What is the unit of measurement of intensity?
Sets with similar terms
Ch 2. The Human Ear and Simple Tests of Hearing
Audiology Chapter 5