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Chapter 6 Review
The Ear
Term | Definition |
---|---|
TM | Tympanic membrane |
PE | Polyethylene |
ENT | Ear, nose, and throat |
BAER | Brainstem auditory evoked response |
BAEP | Brainstem auditory evoked potential |
myring/o, tympan/o | Eardrum |
salping/o | Tube |
-acusis | Hearing condition |
cerumin/o | Wax |
aur/I, ot/o | Ear |
aer/o | Air or gas |
acous/o, audi/o | Hearing |
Internal (inner) ear or labyrinth | Receives and passes sound vibrations through semicircular canals and vestibule to spiral organ (organ of Corti) within the cochlea |
Auditory (Eustachian) tube | Connects with pharynx (throat) to maintain equal air pressure |
Vibrations | Next transmitted to oval window, stimulating auditory fluids in the internal ear |
Sound waves | Reach tympanic membrane which transmits sound vibrations to auditory ossicles |
Middle ear | Region between external acoustic meatus and internal ear; includes tympanic membrane |
External acoustic meatus | Passageway inward toward tympanic membrane |
Otology | A subspecialty of otorhinolaryngology, involving the study and treatment of the ear, nose, and throat (ENT) |
Eustachian tube | Tube connecting the middle ear to the pharynx (throat); also called the auditory tube |
Perilymph | Fluid that fills the bony labyrinth of the internal ear |
Endolymph | Fluid within the membranous labyrinth of the internal ear |
Otorrhagia | Bleeding from the ear |
Otorrhea | Purulent draining from the car |
Vertigo | A turning round; dizziness |
Deafness | General term for partial or complete loss of hearing |
Otitis externa | Inflammation of the external acoustic meatus |
Otitis media | Inflammation of the middle ear |
Mixed hearing loss | Combination of sensorineural and conductive hearing loss |
Sensorineural hearing loss | Hearing impairment caused by lesions or dysfunction of the cochlea (auditory) nerve |