IHS Questions- For License Prep Verified 100% Correct.
1 view 0 purchase
Course
IHS
Institution
IHS
IHS Questions- For License Prep Verified 100% Correct.
The adult ear canal:
Rises upward and forward then descends to the drum
The isthmus is:
Where the canal narrows to enter the temporal bone
The pinna and the external canal together:
-Gather and reinforce accoustical signals
-With...
IHS Questions- For License Prep Verified
100% Correct.
The adult ear canal:
Rises upward and forward then descends to the drum
The isthmus is:
Where the canal narrows to enter the temporal bone
The pinna and the external canal together:
-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:
2700 Hz.
The dividing line between the external ear and the middle ear is the:
Tympanic membrane.
The ear canal contains:
Cilia, ceruminous glands. sebaceous glands.
The vagus nerve (Xth cranial) is found:
Along the bottom of the ear canal.
These are parts of the tympanic membrane:
Pars tensa, Pars flaccida, Umbo.
An otoscopic inspection should reveal:
A clear view of the white tympanic membrane.
These are parts of the pinna:
Tragus, intertragal notch, triangular fossa.
Atresia refers to:
A closure of the external auditory canal.
Perforation of the eardrum can be caused by:
-An infection
-A fracture of the temporal bone
-A nearby explosion.
These are types of hearing loss:
,-Conductive
-Central
-Sensorineural
Conductive losses may be caused by:
A prolapsed canal
Impacted cerumen
Which surgical technique repairs the tympanic membrane?
Myringoplasty
A cholesteatoma can be described as:
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:
Refer the patient to a physician.
A swollen ear may be caused by:
-Eczema
-Otitis externa
-Dermatitis
Tympanosclerosis may be described as:
Calcium deposits.
A tympanic membrane perforation may cause a:
Conductive loss.
Theoretically, the increase in sound pressure provided by the middle ear structure is about:
27 dB.
The footplate of the stapes fits into the:
Oval window.
A type "A" tympanogram would indicate:
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 :
The transfer function or aerial ratio.
The middle ear cavity contains:
Annular ligaments, malleus, stapes and tensor tympani.
, The middle ear system is often referred to as:
An impedance matching transformer.
The middle ear cavity, as a transducer changes energy from one form to another. The energy changes
from:
Acoustic energy to mechanical energy to hydraulic energy.
The middle ear muscles contract, resulting in:
An acoustic reflex.
The Eustachian tube begins in the lower portion of the tympanic cavity and ends at the:
Nasopharynx.
The Eustachian tube of a child is:
Straight, short, horizontal.
A cholesteatoma:
-Occurs in the middle ear
-May perforate the eardrum
-Is usually accompanied by a constant odorous discharge.
Change in either stiffness or mass occur when the normal middle ear function is altered by disease or
trauma causing:
A feeling of stuffiness or a complaint of hearing in a barrel.
Otosclerosis:
Occurs more often in women than men
Occurs more often in Caucasians than other races
Appears to be inherited
Most dysfunctions of the outer or middle ear cause a:
Conductive loss.
Otitis media may occur with:
Fluid in the middle ear.
A plastic or steel strut replaces the stapes during a:
Stapedectomy.
Treatment for chronic otitis media may include:
-Antibiotics
-Inflation of the Eustachian Tube
-Myringotomy
A radical mastiodectomy incudes removal of:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LectAziim. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
