Purpose of Documentation
Provides a History of a Patient’s Care
Clinical course
Response to treatment
Medical/Legal Evidence of Care
Shape of EAC
S - shaped
Pars flaccida
Made of 2 layers: squamous epithelium
Mucosal layer
Mesotympanum
Space in the middle ear directly behind the tympanic membrane
Houses the stapes
Crus Commune
Connects superior and posterior semicircular canals
SF 513
Length of eac
24mm
Light reflex location
anterior inferior portion of ear drum
Oval Window
Filled by the footplate of the stapes
Opening through which vibrations enter the inner ear
Utricle
Contains receptor organs (macula) that respond to acceleration, deceleration, and tilting of the head
SF 600
Used to document patients visit
Lumen of EAC
Narrowest part of eac
Provides a barrier to protect the middle ear from the external ear.
Activates the vibrations of the ossicular chain.
Chorda Tympani Nerve
Branch of the facial nerve that passes through the middle ear
Occasionally visualized in the posterior/superior in quadrant
Nystagmus
An involuntary movement of the eyes in either a vertical, horizontal, or rotary direction
SF 515
Tissue examination
Auricular branch/Vagus Nerve (X) function
Gives sensation to eac and lateral ear drum
Umbo
Center of the tympanic membrane and lower tip of manubrium
Otosclerosis
A bony growth freezing the stapes footplate
Toxic Labyrinthitis
Caused by massive dosage or long term use/exposure to drugs and chemicals such as Gentamicin, Quinine, alcohol, or lead
Gradual vertigo - Maximum severity occurs within 48 hours and then subsides over a few weeks.
SF 88
Used to document physicals (MEPS)
Anotia
The presence of an excessively small pinna
Hearing loss is possible.
It is possible for an individual with microtia to have a normal internal ear.
Made up of 3 layers
Pars Tensa
Tympanoplasty type 2
Damaged malleus
Graft lies on the body of the incus
Process of Sound Transmission
Acuoustical
Mechanical
Hydraulic
Electrical