NBC-HIS Study Guide Exam With Complete Solutions
100% Verified
A/C
Refers to a process by which sound is conducted through the outer and middle ear
B/C
Refers to the evaluation of the inner ear function exclusive of the outer or middle ear
involvement
ABR
auditory brainstem response
Transfer function or areal ratio
22:1 an increase of 27dB
Acoustic reflex
Involuntary response, contraction of stapes, damper on system
stapedius and tensor tympani
Keeps ossicles Chain taught, responds to vibrations from TM, protects cochlea from
dangerously loud sounds, acoustic reflex
Terms associated with Scalia media
Cochlear duct
,Canal of the cochlea
Membranous labyrinth
Contains organ of corti
What frequencies does the base of the cochlea contain
Highs
What frequencies does the apex contain
Lows
place theory of hearing
different areas of the basilar membrane respond to different frequencies, neurons fire
at a rate identical to stimulus below 1kHz
Volley theory of pitch perception
Stimulus beyond 1KHz are volleyed
,Outer Ear Components
Helix
Anti Helix
scaphoid fossa
triangular fossa
external auditory meatus
tragus
anti tragus
lobule
concha
tympanic membrane
osseos portion
cartilaginous portion
inter-tragal notch
What does the outer ear do
funnels sound toward the inner ear
3 multiple choice options
External Auditory Meatus
Self cleaning, 5cm long portion of the outer ear
3 multiple choice options
Vagus Nerve
, Tenth cranial nerve
3 multiple choice options
Tympanic Membrane
Comprised of 4 layers and creates an air tight/water tight seal to the middle ear cavity
3 multiple choice options
TM layers
comprised of 4 layers
3 multiple choice options
Annular Ring
Holds TM in place
3 multiple choice options
Pars Tensa
thick, tense, central-inferior portion of tympanic membrane
2 choice questions
Pars flaccida
small, loose, superior portion of tympanic membrane
100% Verified
A/C
Refers to a process by which sound is conducted through the outer and middle ear
B/C
Refers to the evaluation of the inner ear function exclusive of the outer or middle ear
involvement
ABR
auditory brainstem response
Transfer function or areal ratio
22:1 an increase of 27dB
Acoustic reflex
Involuntary response, contraction of stapes, damper on system
stapedius and tensor tympani
Keeps ossicles Chain taught, responds to vibrations from TM, protects cochlea from
dangerously loud sounds, acoustic reflex
Terms associated with Scalia media
Cochlear duct
,Canal of the cochlea
Membranous labyrinth
Contains organ of corti
What frequencies does the base of the cochlea contain
Highs
What frequencies does the apex contain
Lows
place theory of hearing
different areas of the basilar membrane respond to different frequencies, neurons fire
at a rate identical to stimulus below 1kHz
Volley theory of pitch perception
Stimulus beyond 1KHz are volleyed
,Outer Ear Components
Helix
Anti Helix
scaphoid fossa
triangular fossa
external auditory meatus
tragus
anti tragus
lobule
concha
tympanic membrane
osseos portion
cartilaginous portion
inter-tragal notch
What does the outer ear do
funnels sound toward the inner ear
3 multiple choice options
External Auditory Meatus
Self cleaning, 5cm long portion of the outer ear
3 multiple choice options
Vagus Nerve
, Tenth cranial nerve
3 multiple choice options
Tympanic Membrane
Comprised of 4 layers and creates an air tight/water tight seal to the middle ear cavity
3 multiple choice options
TM layers
comprised of 4 layers
3 multiple choice options
Annular Ring
Holds TM in place
3 multiple choice options
Pars Tensa
thick, tense, central-inferior portion of tympanic membrane
2 choice questions
Pars flaccida
small, loose, superior portion of tympanic membrane
