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Ear
| Term | Definition |
|---|---|
| acous/o | hearing |
| aer/o | air/gas |
| audi/o | hearing |
| aur/o | eat |
| cerumin/o | wax |
| myring/o | eardrum |
| ot/o | ear |
| salping/o | tube |
| tympan/o | eardrum |
| -acusis | hearing condition |
| auricle | AKA pinna; projected part of outer ear |
| external acoustic meatus | passage that directs sound into middle ear |
| cerumen | ear wax |
| tympanic membrane | eardrum/tympanum; membrane that receives sound and amplifies it through middle ear |
| malleus | hammer; first auditory ossicles |
| incus | anvil; second auditory ossicle |
| stapes | stirrup; third auditory ossicle |
| eustachian tube | auditory tube; connects middle ear to pharynx and equalizes air pressure |
| oval window | membrane btwn middle and inner ear |
| labryinth | fluid-filled bony and membranous passages that relay sound waves to nerve fibers to send auditory messages to brain |
| cochlea | coiled structure that contains spiral organ (organ of Corti) |
| perilymph | fluid that fills bony labryinth |
| endolymph | fluid that fills membranous labyrinth |
| organ of Corti | structure in cochlea that recieves vibrations and generates nerve impulses |
| utricle | larger sac of vestibule |
| saccule | smaller sac of vestibule |
| semicircular canals | three canals that contain receptor cells that generate nerve impulses with body movement |
| otalgia | earache |
| otorrhagia | bleeding from ear |
| otorrhea | discharge from ear |
| tinnitus | ringing in ear |
| vertigo | dizziness originating from inner ear |
| otitis externa | inflammation of outer ear |
| tympanitis | inflammation of eardrum |
| aerotitis media | inflammation of middle from changes in pressure |
| eustachian obstruction | blockage of eustachian tube |
| Meniere disease | disorder of inner ear from buildup of endolymph; can cause vertigo and hearing loss |
| conductive hearing loss | hearing impairment due to interference with sound or vibratory energy entering inner ear |
| sensorineural hearing loss | hearing loss due to lesions or dysfunction of cochlea or cochlear nerve |
| audiometer | measures hearing ability |
| BAEP | electrodiagnostic test that measures involuntary responses to sound within auditory nervous system |
| otoscope | instrument used to examine ear |
| tympanotomy | incision into eardrum most often with insertion of a PE tube to keep canal open |
| stapedectomy | removal of stapes to correct otosclerosis |
| hearing aid | helps to amplify sound |
| cochlear implant | helps with internal vibrational conduction |
| ear lavage | used to clear ear of excess cerumen buildup |
Created by:
cfbarone
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