Ear conditions and Eval Flashcards
(43 cards)
What are the 2 functions of the ear?
Hearing
Static & dynamic equilibrium
Contents of the middle ear?
Tympanic membrane
Ossicles
Eustachian tube
The stapes connects to the what to transmit sounds in the form of vibrations?
Oval window of the cochlea
Helps to equalize the air pressure in middle ear with that of outside air
Eustachian tube
What is the function of the tensor tympani?
dampens the sound of chewing
What is the function of the Stapedius?
Dampens the sounds of your own voice
What nerve carries sound and body position & motion signals from the inner ear to brain?
CN 8, vestibulocochlear
What are the components to the inner ear?
Cochlea
Utricle & Saccule
Semicircular Canals
Provide information about body position at rest
Utricle & Saccule
Provide information about the body in motion
Semicircular Canals
What is auditory paresthesia commonly called?
Tinnitus
An infection of the skin and outer ear is called?
Perichondritis
Otitis Externa common name?
Swimmer’s Ear
Exostoses in ear canal is called?
Surfer’s Ear
absence or abnormal narrowing of an opening or passage in the body is what?
Atresia
Is Atresia of the ear just a cosmetic issue?
no, can affect the canal opening and may cause it to not be there at all aka Anotia
- A condition that sometimes results from physical trauma to the pinna, or inflammation or infection
- Because the circulation in parts of the ear is slow, trapped blood and fluid can organize, creating permanent deformity in the shape of the pinna
Cauliflower Ear
- Another name for the inflammation or infection of external ear secondary to infection, trauma, piercing, or other causes
- Treated with astringents
and systemic antibiotics to prevent permanent disfigurement - Drainage when necessary
Perichondritis
Which form of scarring is temporary and which is permanent?
Temporary= Hypertrophic
Permanent= Keloid
- Often caused by water getting into ear canal
- Due to bacteria or fungi
- Can cause a boil or abscess
*Diabetes and/or skin conditions like dermatitis can make ear prone to infection
Otitis Externa aka swimmer’s ear
What are the symptoms of swimmer’s ear?
itching, swelling, pain, tenderness, discharge, & occasionally hearing loss due to obstruction
What exam findings do you expect with Otitis externa?
Pain w/manipulation or pressing on the tragus
What is the appropriate care for Otitis Externa/Swimmer’s ear?
Depends on cause=
*Hematoma or abscess is drained
*Antibiotics
*Anti-inflammatory drugs
*keep moisture out of ear
What has been proven to play a huge role in non-infectious otitis externa?
Food sensitivities producing IgE antibodies