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IHS Questions- For License Prep Exam Question & Answers
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IHS Questions- For License Prep ExamQuestion & Answers
The adult ear canal: - Correct Answers ✅Rises upward and forward
then descends to the drum
The isthmus is: - Correct Answers ✅Where the canal narrows to
enter the temporal bone
The pinna and the external canal together: - Correct Answers ✅-
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 Answers ✅2700 Hz.
The dividing line between the external ear and the middle ear is the: -
Correct Answers ✅Tympanic membrane.
The ear canal contains: - Correct Answers ✅Cilia, ceruminous glands.
sebaceous glands.
The vagus nerve (Xth cranial) is found: - Correct Answers ✅Along the
bottom of the ear canal.
,IHS Questions- For License Prep Exam
Question & Answers
These are parts of the tympanic membrane: - Correct Answers
✅Pars tensa, Pars flaccida, Umbo.
An otoscopic inspection should reveal: - Correct Answers ✅A clear
view of the white tympanic membrane.
These are parts of the pinna: - Correct Answers ✅Tragus, intertragal
notch, triangular fossa.
Atresia refers to: - Correct Answers ✅A closure of the external
auditory canal.
Perforation of the eardrum can be caused by: - Correct Answers ✅-
An infection
-A fracture of the temporal bone
-A nearby explosion.
These are types of hearing loss: - Correct Answers ✅-Conductive
-Central
-Sensorineural
,IHS Questions- For License Prep Exam
Question & Answers
Conductive losses may be caused by: - Correct Answers ✅A
prolapsed canal
Impacted cerumen
Which surgical technique repairs the tympanic membrane? - Correct
Answers ✅Myringoplasty
A cholesteatoma can be described as: - Correct Answers ✅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 Answers ✅Refer the patient
to a physician.
A swollen ear may be caused by: - Correct Answers ✅-Eczema
-Otitis externa
-Dermatitis
Tympanosclerosis may be described as: - Correct Answers ✅Calcium
deposits.
A tympanic membrane perforation may cause a: - Correct Answers
✅Conductive loss.
, IHS Questions- For License Prep Exam
Question & Answers
Theoretically, the increase in sound pressure provided by the middle
ear structure is about: - Correct Answers ✅27 dB.
The footplate of the stapes fits into the: - Correct Answers ✅Oval
window.
A type "A" tympanogram would indicate: - Correct Answers
✅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 Answers ✅The transfer function or aerial ratio.
The middle ear cavity contains: - Correct Answers ✅Annular
ligaments, malleus, stapes and tensor tympani.
The middle ear system is often referred to as: - Correct Answers
✅An impedance matching transformer.
The middle ear cavity, as a transducer changes energy from one form to
another. The energy changes from: - Correct Answers ✅Acoustic
energy to mechanical energy to hydraulic energy.
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