IHS Questions- For License Prep
Questions and answers 2026/2027
Updated.
The adult ear canal: - CORRECT ANSWER-Rises upward and forward then
descends to the drum
The isthmus is: - CORRECT ANSWER-Where the canal narrows to enter the
temporal bone
The pinna and the external canal together: - CORRECT ANSWER--Gather and
reinforce accoustical signals
-With the irregular shape of the auricle, cause increases and decreases at
different frequencies as the sound arrives at the ear.
-Forms a resonating tube.
The average resonant frequency of the ear canal plus concha is: - CORRECT
ANSWER-2700 Hz.
The dividing line between the external ear and the middle ear is the: -
CORRECT ANSWER-Tympanic membrane.
The ear canal contains: - CORRECT ANSWER-Cilia, ceruminous glands.
sebaceous glands.
The vagus nerve (Xth cranial) is found: - CORRECT ANSWER-Along the bottom
of the ear canal.
These are parts of the tympanic membrane: - CORRECT ANSWER-Pars tensa,
Pars flaccida, Umbo.
An otoscopic inspection should reveal: - CORRECT ANSWER-A clear view of
the white tympanic membrane.
These are parts of the pinna: - CORRECT ANSWER-Tragus, intertragal notch,
triangular fossa.
,Atresia refers to: - CORRECT ANSWER-A closure of the external auditory canal.
, Perforation of the eardrum can be caused by: - CORRECT ANSWER--An
infection
-A fracture of the temporal bone
-A nearby explosion.
These are types of hearing loss: - CORRECT ANSWER--Conductive
-Central
-Sensorineural
Conductive losses may be caused by: - CORRECT ANSWER-A prolapsed canal
Impacted cerumen
Which surgical technique repairs the tympanic membrane? - CORRECT
ANSWER-Myringoplasty
A cholesteatoma can be described as: - CORRECT ANSWER-A pouch of skin
filled with epithelial debris.
When an excess of cerumen or a blockage of cerumen is detected, the hearing
aid specialist should: - CORRECT ANSWER-Refer the patient to a physician.
A swollen ear may be caused by: - CORRECT ANSWER--Eczema
-Otitis externa
-Dermatitis
Tympanosclerosis may be described as: - CORRECT ANSWER-Calcium
deposits.
A tympanic membrane perforation may cause a: - CORRECT ANSWER-
Conductive loss.
Theoretically, the increase in sound pressure provided by the middle ear
structure is about: - CORRECT ANSWER-27 dB.
The footplate of the stapes fits into the: - CORRECT ANSWER-Oval window.
A type "A" tympanogram would indicate: - CORRECT ANSWER-Normal
pressure and compliance.
The difference in area size between the tympanic membrane an the footplate of
the stapes increasing the sound pressure at the footplate is : - CORRECT
ANSWER-The transfer function or aerial ratio.
The middle ear cavity contains: - CORRECT ANSWER-Annular ligaments,
malleus, stapes and tensor tympani.
The middle ear system is often referred to as: - CORRECT ANSWER-An
impedance matching transformer.
Questions and answers 2026/2027
Updated.
The adult ear canal: - CORRECT ANSWER-Rises upward and forward then
descends to the drum
The isthmus is: - CORRECT ANSWER-Where the canal narrows to enter the
temporal bone
The pinna and the external canal together: - CORRECT ANSWER--Gather and
reinforce accoustical signals
-With the irregular shape of the auricle, cause increases and decreases at
different frequencies as the sound arrives at the ear.
-Forms a resonating tube.
The average resonant frequency of the ear canal plus concha is: - CORRECT
ANSWER-2700 Hz.
The dividing line between the external ear and the middle ear is the: -
CORRECT ANSWER-Tympanic membrane.
The ear canal contains: - CORRECT ANSWER-Cilia, ceruminous glands.
sebaceous glands.
The vagus nerve (Xth cranial) is found: - CORRECT ANSWER-Along the bottom
of the ear canal.
These are parts of the tympanic membrane: - CORRECT ANSWER-Pars tensa,
Pars flaccida, Umbo.
An otoscopic inspection should reveal: - CORRECT ANSWER-A clear view of
the white tympanic membrane.
These are parts of the pinna: - CORRECT ANSWER-Tragus, intertragal notch,
triangular fossa.
,Atresia refers to: - CORRECT ANSWER-A closure of the external auditory canal.
, Perforation of the eardrum can be caused by: - CORRECT ANSWER--An
infection
-A fracture of the temporal bone
-A nearby explosion.
These are types of hearing loss: - CORRECT ANSWER--Conductive
-Central
-Sensorineural
Conductive losses may be caused by: - CORRECT ANSWER-A prolapsed canal
Impacted cerumen
Which surgical technique repairs the tympanic membrane? - CORRECT
ANSWER-Myringoplasty
A cholesteatoma can be described as: - CORRECT ANSWER-A pouch of skin
filled with epithelial debris.
When an excess of cerumen or a blockage of cerumen is detected, the hearing
aid specialist should: - CORRECT ANSWER-Refer the patient to a physician.
A swollen ear may be caused by: - CORRECT ANSWER--Eczema
-Otitis externa
-Dermatitis
Tympanosclerosis may be described as: - CORRECT ANSWER-Calcium
deposits.
A tympanic membrane perforation may cause a: - CORRECT ANSWER-
Conductive loss.
Theoretically, the increase in sound pressure provided by the middle ear
structure is about: - CORRECT ANSWER-27 dB.
The footplate of the stapes fits into the: - CORRECT ANSWER-Oval window.
A type "A" tympanogram would indicate: - CORRECT ANSWER-Normal
pressure and compliance.
The difference in area size between the tympanic membrane an the footplate of
the stapes increasing the sound pressure at the footplate is : - CORRECT
ANSWER-The transfer function or aerial ratio.
The middle ear cavity contains: - CORRECT ANSWER-Annular ligaments,
malleus, stapes and tensor tympani.
The middle ear system is often referred to as: - CORRECT ANSWER-An
impedance matching transformer.
