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Audiology
Test 1
56
Other
Post-Graduate
09/17/2013

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Cards

Term
How did the profession of Audiology come to be?
Definition
World War II vets reentering civilian life created the profession otology (SLP) aural rehabilitation
Term
In what settings do audiologist work?
Remember the pneumonic device
Definition
Underwear Don't Officially Say Have Intimate Male Private Practice
_________________________
Universities
Doctors office
Schools
Hospitals
Industry
Military
Private Practice
Term
What types of services do audiologist provide?
Definition
•Hearing & vestibular testing and diagnostic
•provide aural & vestibular rehabilitation
Adjust hearing aids
Clean out ear wax
Term
What's the divisions of the
Outer/middle/inner ear
Definition
Pinna-> tympanic membrane
tympanic membrane->oval window
Oval window-> cochlea
Term
What are the 3 structures of the outer ear?
Definition
Pinna- what I think of when u say ear
Concha- the middle most portion of the outer ear just before the opening into the head.
Tragus(goats beard)- a small triangular pice of cartilage that is an efficient way to block sound
Term
What are the two hands of the concha called?
Definition
Upper cymba concha
Lower cavum concha
Term
What are the functions of the external auditory canal?
Definition
To protect and keep at constant temperature and humidify.
To protect fine lower frequencies
Term
Describe the External auditory meatus
Definition
•elliptical in shape
•one inch in length
•angles upward
•has 2 bends before the tympanic membrane
Term
Name two disorders of the outer ear?
Definition
Microtia
External Otitis
Term
Microtia
Definition
One or both ears may be small in size is associated with Down's syndrome
Term
External otitis
Definition
An infection that occurs in the skin of the EAM caused by water trapped in ears known as swimmers ear
Term
What are the 3 types of hearing loss?
Definition
•conductive
•sensorineural
•mixed
Term
Conductive hearing loss
Definition
When ever a barrier to sound is present in the outer or middle ear some loss of hearing will result
•I.E. wax, fluid or damage or disjointed ossicles
Term
Sensorineural hearing loss
Definition
Sensory hearing loss results from damage to the inner ear
I.E. exposed to loud noise
Exposure to ototoxic medication
Viral infections
Autoimmune inner ear disease
Sensory hearing loss is permanent
Term
Mixed hearing loss
Definition
Mixed hearing loss is a loss of hearing sensitivity by bone conduction and a loss of sensitivity by air conduction
I.E. a combination of viral infection & ear wax
Term
What is the space above the TM called?
Definition
Expiry panic recess or
Tympanic attic
Term
Describe the middle ear
Definition
Is roughly oval shaped
2cm in volume
Term
How many layers are in the tympanic membrane?
Definition
3
Term
What are the three layers of the tympanic membrane comprised of?
Definition
Distal-later is epidermis (skin)
Middle layer is fibrous layer
Mucous membrane layer
Term
How is the Eustachian tube angled in adults and children?
Definition
Adults 30 degree anterior angle
Children has a horizontal angle
Term
What is the resting position of the Eustachian tube?
Definition
Closed
•it is closed by a spring mechanism in the cartilage
Term
What are opening actions of the Eustachian tube
Definition
Yawning
Sneezing
Swallowing
Whenever higher pressure is applied from the nose
Term
The eustachian tube and the ME space for the what?
Definition
Middle ear cleft.
Term
The ME is lined with what?
Definition
Mucous membrane
Term
Est on how many people In the US have a hearing impairment?
Definition
Above 28 million
Term
What does AAA stand for in audiology?
Definition
American Academy of Audiology
Term
What is the first part of the ear canal ?
Definition
Cartilage
Term
What is the second portion of the ear canal
Definition
Bone
Term
What portion of the ear canal is cerumem
Definition
Cartilaginous portion
Term
How many DB does your pinna add
Definition
3DB
Term
How is wax removed from the ear canal?
Definition
Chewing or talking
Term
Most Experts agree the _____ muscle is activated in the Acoustic reflex
Definition
Tympedial muscle
Term
What's can be done if an infection occurs in the inner ear and affects the mastoid process?
Definition
They can scrape the bone Called a mastoidectomy
Term
The fluid that surrounds the membranous labyrinth?
Definition
Perilymph
Term
What does the basilar's membrane separate ?
Definition
Scalia tympani from the scalia media
Term
What does the reissner's membrane separate?
Definition
Scala vestibuli from the scala media
Term
What sounds are represented by the base of the cochlea?
Definition
High frequencies at the base
Term
Low frequencies are represented at the ______ of the cochlea ?
Definition
Apex
Term
The cochlea is what?
Definition
Tonotopically organized
Term
The central core or the cochlea is the_____?
Definition
Modiolus
Term
Out of the scala vestibuli, media, tympani which contains the perilymph
Definition
Vestibuli and tympani
Term
What is the small passage way at the apex where the scala vestibuli and the scala tympani connect
Definition
Helicotrema
Term
What is the tallest stereocilia called?
Definition
Kinocilium
Term
The direction of the cilia determines whether or not the nerve is ________ or _______.
Definition
Stimulated
Inhibited
Term
In the otolith organs the utricle is in a ______ plane and the saccule is in the ______ plane
Definition
Horizontal
Vertical
Term
What does the Acronym C.O.W.S
Stand for?
Definition
Cool
Opposite
Warm
Same
Term
What are the three ossicle bones?
Definition
1.malleus
2.incus
3.stapes
Term
What is the smallest bone in the body?
Definition
Stapes
Term
The malleus is connected to the eardrum at the _____?
Definition
Umbro
Term
The lncus provides connection to the staples at the _______ process?
Definition
Lenticular
Term
The footplate of the stapes sits where?
Definition
Oval window
Term
What force acts against the transfer of mechanical energy?
Definition
Gravity
Friction
Term
What is the impedance?
Definition
Any force that acts in opposition to the motion of an object
I.E. Gravity, Friction, Mass
Term
How much does the malleus and incus weight?
Definition
25mg
Term
How much does the stapes weight?
Definition
2.5mg
Term
A loud sound in one will cause what?
Definition
Both stapedius muscles to contract .
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