Exam 15: Ear Disorders (Key terms)
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| Pinna or auricle | the external ear.
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| Tinnitus | a subjective noise sensation heard in one or both ears; ringing or tinkling sounds in the ear.
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| Vertigo | the sensation that the outer world is revolving about oneself or that one is moving in space.
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| Otoscopy | direct visualization of the external auditory canal and the eardrum.
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| Otitis externa | infection of the external ear and adjacent skin.
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| Otitis Media | fluid from an infection, allergy or tumor that collects in the middle ear as a result of obstruction of the auditory tube.
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| Labyrinthitis | an inflammation of the labyrinthine canals of the inner ear.
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| Otosclerosis | a condition characterized by chronic progressive deafness caused by the formation of spongy bone, with resulting ankylosis of the stapes, causing tinnitus and then deafness.
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| Meniere's Disease | disturbance of the semicircular canals that results in tinnitus and unilateral deafness.
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| Stapedectomy | removal of the stapes of the middle ear and insertion of a graft and prosthesis.
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| Tympanoplasty | any of several operative procedures on the eardrum or ossicles of the middle ear designed to restore or improve hearing in patients with conductive hearing loss.
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| Myringotomy | a surgical incision of the eardrum performed to relieve pressure and release purulent exudates from the middle ear.
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| Nystagmus | rhythmic involuntary movement of the eye. May be symptom of problem with vestibular system.
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