Audiology Exam 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Pathways of sound - CORRECT ANSWER - Air conduction and Bone Conduction
Air Conduction - CORRECT ANSWER - Air waves pass through out ear, and middle ear,
impgnes on ear drum and hit inner ear
Bone conduction - CORRECT ANSWER - Bypases OE and ME,starts vibration on
mastoid process and send vibrations directly to inner ear
Conductive components - CORRECT ANSWER - Out Ear: Pinna and ear canal
Middle Ear: Ossicles, oval window, eustachian tube, tensor tympani muscle, stapedius muscles,
ossicles
Sensorineural components - CORRECT ANSWER - Inner ear: cochlea, auditory nerve,
central auditory pathway
Types of acoustic stimuli - CORRECT ANSWER - 1. Pure tones
2. Clicks and transients
3. Noise Bands
4. Speech
Pure Tone stimuli - CORRECT ANSWER - Tonotopic organization of BM allows us to
see if specfic part of BM is damaged (High on Basal, Low on Apical)
Tests one frequency at a time
Click and transients - CORRECT ANSWER - very brief (2ms) across broad frequencies.
Assess auditory function that requires fine temporal relationships, ie timing in speech
, Noise Bands - CORRECT ANSWER - Noise signal across many frequencies, used in
masking.
3 types: white noise, narrow band, speech shaped noise
White noise - CORRECT ANSWER - Noise band; energy across all frequencies
Narrow band - CORRECT ANSWER - noise band centered around one frequency
Speech shaped noise - CORRECT ANSWER - more energy on lower frequencies than
higher frequencies
Speech - CORRECT ANSWER - Used most in hearing, complex and most changing
Speech specific materials: spondees, phonetic content, familiarity of words, sentence materials
Average normal hearing - CORRECT ANSWER - Test large number of young, normal
listeners and average data to give threshold curve of hearing
dB SPL to db HL - CORRECT ANSWER - dB SPL - Reference = dB HL
dB HL to db SPL - CORRECT ANSWER - dB HL + Reference = db SPL
Dynamic Range of Hearing - CORRECT ANSWER - Difference between threshold curve
of hearing and LDL, aka Audibility area
Audiometer components - CORRECT ANSWER - - Frequency control
- Hearing level control
- Tone Interupter
- Transducer selector
- Masking selector
Exam Questions and CORRECT Answers
Pathways of sound - CORRECT ANSWER - Air conduction and Bone Conduction
Air Conduction - CORRECT ANSWER - Air waves pass through out ear, and middle ear,
impgnes on ear drum and hit inner ear
Bone conduction - CORRECT ANSWER - Bypases OE and ME,starts vibration on
mastoid process and send vibrations directly to inner ear
Conductive components - CORRECT ANSWER - Out Ear: Pinna and ear canal
Middle Ear: Ossicles, oval window, eustachian tube, tensor tympani muscle, stapedius muscles,
ossicles
Sensorineural components - CORRECT ANSWER - Inner ear: cochlea, auditory nerve,
central auditory pathway
Types of acoustic stimuli - CORRECT ANSWER - 1. Pure tones
2. Clicks and transients
3. Noise Bands
4. Speech
Pure Tone stimuli - CORRECT ANSWER - Tonotopic organization of BM allows us to
see if specfic part of BM is damaged (High on Basal, Low on Apical)
Tests one frequency at a time
Click and transients - CORRECT ANSWER - very brief (2ms) across broad frequencies.
Assess auditory function that requires fine temporal relationships, ie timing in speech
, Noise Bands - CORRECT ANSWER - Noise signal across many frequencies, used in
masking.
3 types: white noise, narrow band, speech shaped noise
White noise - CORRECT ANSWER - Noise band; energy across all frequencies
Narrow band - CORRECT ANSWER - noise band centered around one frequency
Speech shaped noise - CORRECT ANSWER - more energy on lower frequencies than
higher frequencies
Speech - CORRECT ANSWER - Used most in hearing, complex and most changing
Speech specific materials: spondees, phonetic content, familiarity of words, sentence materials
Average normal hearing - CORRECT ANSWER - Test large number of young, normal
listeners and average data to give threshold curve of hearing
dB SPL to db HL - CORRECT ANSWER - dB SPL - Reference = dB HL
dB HL to db SPL - CORRECT ANSWER - dB HL + Reference = db SPL
Dynamic Range of Hearing - CORRECT ANSWER - Difference between threshold curve
of hearing and LDL, aka Audibility area
Audiometer components - CORRECT ANSWER - - Frequency control
- Hearing level control
- Tone Interupter
- Transducer selector
- Masking selector
