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61 Cards in this Set
- Front
- Back
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pinna
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auricle (little ear); projected part of the external ear
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external auditory canal
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external passage for sounds collected from the pinna to the tympanum
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cerumen
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a waxy substance secreted by glands located thru-out the external canal
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tympanic membrane (TM)
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eardrum; drumlike structure that receives sound collected in the external auditory canal and amplifies it thru the middle ear
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malleus
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hammer; first of the tress auditory ossicles of the middle ear
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incus
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anvil; middle of the three auditory ossicles of the middle ear
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stapes
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stirrup; last of the three auditory ossicles of the middle ear
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eustachian tube (auditory tube)
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tube connecting the middle ear to the pharynx
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oval window
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membrane that covers the opening between the middle ear and inner ear
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inner ear
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structures and liquids that relay sound waves to the audiotry nerve fibers on a path to the brain for interpretation of sound
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labyrinth
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maze; inner ear consisting of bony and membranous passages
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cochlea
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coiled tubular structure of the inner ear that contains the organ of Corti
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perilymph
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fluid that fills the bony labyrinth of the inner ear
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endolymph
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fluid within the cochlear duct of the inner ear
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organ of Corti
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organ located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
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vestibule
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middle part of the inner ear in front of the semilunar canals and behind the cochlea that contains the utricle and the saccule
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utricle
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larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
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saccule
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smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
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semicircular canals
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three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
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anacusis
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total hearing loss
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otalgia
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ear ache
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otodynia
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ear ache
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otorrhagia
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bleeding from the ear
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otorrhea
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purulent drainage from the ear
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paracusis
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impaired hearing
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tinnitus
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a jingling; ringing or buzzing in the ear
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vertigo
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a turning around; dizziness
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otitis externa
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inflammation of the external auditory canal
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cerumen impaction
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excessive buildup of wax in the ear, ofter reducing hearing acuity, esp. in elderly persons
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myringitis
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inflam of the eardrum
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tympanitis
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inflam of eardrum
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otits media
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inflam of the middle ear
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aerotitis media
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inflam of the middle ear from changes in atmospheric pressure; ofter occurs in freq air travel
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eustachian obstruction
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blockage of the eustachian tube usually as a result of infection, as in otits media
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labrinthitis
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inflam of the labyrinth
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otosclerosis
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hardening of the bony tissue in the ear
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deafness
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general term for partial or complete hearing loss
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conductive hearing loss
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hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
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sensorineural hearing loss
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hearing impairment caused by lesions or dysfuction of the cochlea of auditory nerve
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presbyacusis
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hearing impairment in old age
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presbycusis
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hearing impairment in old age
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audiometry
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process of measuring hearing
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audiometer
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instrument to measure hearing
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audiogram
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record of hearing measurement
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audiologist
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the health prof. who specializes in the study of hearing impairments
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auditory acuity testing
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physical assessment of hearing; useful in differentiating between conductive and sensorineural hearing loss
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tuning fork
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two pronged, forklike inst. that vibrates when struck; used to test hearing, esp. bone conduction
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otoscopy
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use of an otoscope to examine the external auditory canal and tympanic membrane
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tympanometry
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measurement of the conductibility of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures
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microsurgury
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surgery with the use of a microscope used in delicate tissue such as the ear
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myringotomy
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incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media
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otoplasty
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surgical repair of the external ear
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stapedectomy
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excision of the stapes to correct otosclerosis
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tympanoplasty
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vein graft of a scarred tympanic membrane to improved sound conduction
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ear lavage
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irrigation of the external ear canal, often to remove excessive buildup of cerumen
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ear instillation
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introduction of a medicated solution into the external canal, usually administered by drop or drops in the affected ear or ears:
AD (auris dextris) AS (auris sinistra) AU (auris unitas) |
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antibiotic
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drug that inhibits the growth of or destroys microorganisms; used to treat diseases caused by bacteria
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antihistamine
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drug that blocks the effects of histamine
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histamine
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a regulatory body substance released in allergic rxns causing swelling and inflam of tissues; seen in hay fever and urticaria (hives)
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anti-inflammatory
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a drug that reduces inflam
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decongestant
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a drug that reduces congestion and swelling of membranes, such as those of the nost and eustachian tube in an infection
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