IHS ILE FINAL PAPER STUDY GUIDE
SOLVED QUESTIONS VERIFIED
●● The isthmus is:
Answer: Where the canal narrows to enter the temporal bone
●● The pinna and the external canal together:
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:
Answer: 2700 Hz.
●● The dividing line between the external ear and the middle ear is the:
Answer: Tympanic membrane.
●● The ear canal contains:
Answer: Cilia, ceruminous glands. sebaceous glands.
●● The vagus nerve (Xth cranial) is found:
,Answer: Along the bottom of the ear canal.
●● These are parts of the tympanic membrane:
Answer: Pars tensa, Pars flaccida, Umbo.
●● An otoscopic inspection should reveal:
Answer: A clear view of the white tympanic membrane.
●● These are parts of the pinna:
Answer: Tragus, intertragal notch, triangular fossa.
●● Atresia refers to:
Answer: A closure of the external auditory canal.
●● Perforation of the eardrum can be caused by:
Answer: -An infection
-A fracture of the temporal bone
-A nearby explosion.
●● These are types of hearing loss:
Answer: -Conductive
-Central
,-Sensorineural
●● Conductive losses may be caused by:
Answer: A prolapsed canal
Impacted cerumen
●● Which surgical technique repairs the tympanic membrane?
Answer: Myringoplasty
●● A cholesteatoma can be described as:
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:
Answer: Refer the patient to a physician.
●● A swollen ear may be caused by:
Answer: -Eczema
-Otitis externa
-Dermatitis
●● Tympanosclerosis may be described as:
, Answer: Calcium deposits.
●● A tympanic membrane perforation may cause a:
Answer: Conductive loss.
●● Theoretically, the increase in sound pressure provided by the middle
ear structure is about:
Answer: 27 dB.
●● The footplate of the stapes fits into the:
Answer: Oval window.
●● A type "A" tympanogram would indicate:
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 :
Answer: The transfer function or aerial ratio.
●● The middle ear cavity contains:
Answer: Annular ligaments, malleus, stapes and tensor tympani.
●● The middle ear system is often referred to as:
SOLVED QUESTIONS VERIFIED
●● The isthmus is:
Answer: Where the canal narrows to enter the temporal bone
●● The pinna and the external canal together:
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:
Answer: 2700 Hz.
●● The dividing line between the external ear and the middle ear is the:
Answer: Tympanic membrane.
●● The ear canal contains:
Answer: Cilia, ceruminous glands. sebaceous glands.
●● The vagus nerve (Xth cranial) is found:
,Answer: Along the bottom of the ear canal.
●● These are parts of the tympanic membrane:
Answer: Pars tensa, Pars flaccida, Umbo.
●● An otoscopic inspection should reveal:
Answer: A clear view of the white tympanic membrane.
●● These are parts of the pinna:
Answer: Tragus, intertragal notch, triangular fossa.
●● Atresia refers to:
Answer: A closure of the external auditory canal.
●● Perforation of the eardrum can be caused by:
Answer: -An infection
-A fracture of the temporal bone
-A nearby explosion.
●● These are types of hearing loss:
Answer: -Conductive
-Central
,-Sensorineural
●● Conductive losses may be caused by:
Answer: A prolapsed canal
Impacted cerumen
●● Which surgical technique repairs the tympanic membrane?
Answer: Myringoplasty
●● A cholesteatoma can be described as:
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:
Answer: Refer the patient to a physician.
●● A swollen ear may be caused by:
Answer: -Eczema
-Otitis externa
-Dermatitis
●● Tympanosclerosis may be described as:
, Answer: Calcium deposits.
●● A tympanic membrane perforation may cause a:
Answer: Conductive loss.
●● Theoretically, the increase in sound pressure provided by the middle
ear structure is about:
Answer: 27 dB.
●● The footplate of the stapes fits into the:
Answer: Oval window.
●● A type "A" tympanogram would indicate:
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 :
Answer: The transfer function or aerial ratio.
●● The middle ear cavity contains:
Answer: Annular ligaments, malleus, stapes and tensor tympani.
●● The middle ear system is often referred to as:
