Chapter 17 Pathology- Ear Flashcards
acoustic neuroma
benign tumor arising from the acoustic vestibulocochlear nerve (eighth cranial nerve) in the brain
cholesteatoma
collection of skin cells and cholesterol in a sac within the middle ear
deafness
loss of the ability to hear
meniere disease
disorder of the labyrinth of the inner ear; elevated endolymph pressure within the cochlea (cochlear hydrops) and semicircular canals (vestibular hydrops)
otitis media
inflammation of the middle ear
otosclerosis
hardening of the bony tissue of the middle ear
tinnitus
sensation of noises (ringing, buzzing, whistling, booming) in the ears
vertigo
sensation of irregular or whirling motion either of oneself or of external objects
audiometry
testing the sense of hearing
cochlear implant procedure
surgical insertion of a device that allows sensorineural hearing-impaired persons to understand speech
ear thermometry
measurement of the temperature of the tympanic membrane bu detection of infrared radiation from the eardrum
otoscopy
visual examination of the ear canal with an otoscope
tuning fork test
test of ear conduction using a vibrating source