Med Term Ch.11 Cont.

Flashcard maker : Amber Moore
the general term used to describe the surgical removal of a cataract clouded lens
the use of ultrasonic vibration to shatter and remove the lens clouded by a cataract
intraocular lens
a surgically implanted replacement for a natural lens that has been removed
laser iridotomy
This treatment uses a focused beam of light to create a hole in the iris of the eye
laser trabeculoplasty
a treatment used to treat open-angle glaucoma by creating openings in the trabecular meshwork to allow the fluid to drain properly
acronym for Laser Assisted in Situ Keratomileuisis. It is used to treat vision conditions that are caused by the shape of the cornea.
the use of a laser to treat some forms of wet macular degeneration by sealing leaking or damaged blood vessels.
used to reattach the detached area in a retinal detachment
pertaining to the sense of hearing
pertaining to sound or hearing
aka the auricle or outer ear, it is the external portion of the ear
external auditory canal
transmits sound waves to the tympanic membrane of the middle ear.
aka earwax,this is secreted by ceruminous glands that line the auditory canal
middle ear
located between the outer ear and the inner ear, and transmits sound across the space between these two spaces
tympanic membrane
aka the eardrum, located between the outer and middle ear
mastoid process
the temporal bone containing hollow air space that surrounds the middle ear
auditory ossicles
three small bones located within the middle ear.
eustachian tubes
the narrow tubes that lead from the middle ear to the nasal cavity and the throat.
inner ear
contains the sensory receptors for hearing and balance
oval window
located under the base of the stapes and is the membrane that separates the middle ear from the inner ear.
the snail-shaped structure of the inner ear and is where sound vibrations are converted into nerve impulses
organ of Corti
receives the vibrations from the cochlear duct and relays them to the auditory nerve fibers
semicircular canals
contain the liquid endolymph and sensitive hair-like cells.
acoustic nerves
transmit information to the brain, and the brain sends messages to muscles in all parts of the body to ensure that equilibrium is maintained
air conduction
the process by which sound waves enter the ear through the pinna and then travel down the external auditory canal until they strike the tympanic membrane
bone conduction
occurs as the eardrum vibrates and causes the auditory ossicles of the middle ear to vibrate.
sensorineural conduction
occurs when these sound vibrations reach the inner ear.
a person who specializes in the measurement of hearing function and in the rehabilitation of persons with hearing impairments.
impacted cerumen
an accumulation of earwax that forms a solid mass by adhering to the walls of the external auditory canal
aka earache, is pain in the ear
inflammation of the ear
aka swimmer’s ear, a fungal infection of the external auditory canal
the flow of pus from the ear
any discharge from the ear
bleeding from the ear
a pressure related ear condition
a destructive epidermal cyst in the middle ear and/or the mastoid process made up of epithelial cells and cholesterol
an inflammation of any part of the mastoid bone cells
infectious myringitis
a contagious inflammation that causes painful blisters on the eardrum
Otitis media
an inflammation of the middle ear
the ankylosis of the bones of the middle ear, resulting in a conductive hearing loss.
an inflammation of the labyrinth that can result in vertigo and deafness
a sense of whirling, dizziness, and loss of balance that are often combined with nausea and vomitting.
Meniere’s disease
a rare chronic disorder in which the amount of fluid in the inner ear increases intermittently, producing attacks of vertigo, a fluctuating hearing loss and tinnitis
a condition of a ringing, buzzing, or roaring sound in one or both ears. f
acoustic neuroma
a brain tumor that develops adjacent to the cranial nerve running from the brain to the inner ear.
the complete or partial loss of the ability to hear.
a gradual loss of sensorineural hearing that occurs as the body ages
conductive hearing loss
occurs when sound waves are prevented from passing from the air to the fluid filled inner ear.
Sensorineural hearing loss
aka nerve deafness, develops when the auditory nerve or hair cells in the inner ear are damaged.
commonly used as the measurement of the loudness of sound
audiological evaluation
the measurement of the ability to hear and understand speech sounds based on their pitch and loudness
the use of an audiometer to measure hearing acuity
an instrument used to examine the external ear canal
monaural testing
involves one ear
Binaural testing
testing involving both ears
the use of air pressure in the ear canal to test for disorders of the middle ear
Weber and Rinne tests
a tuning fork to distinguish between conductive and sensorineural hearing losses.
the surgical repair, restoration, or alteration of the pinna of the ear
ear tubes
tiny ventilating tubes placed through the eardrum to provide ongoing drainage for fluids and to relieve pressure that can build up after childhood ear infections
the surgical removal of mastoid cells
a small surgical incision in the eardrum to relieve pressure from excess pus or fluid, or to create an opening for the placement of ear tubes.
the surgical removal of the top portion of the stapes bone and the insertion of a small prosthetic device known as a piston that conducts sound vibration to the inner ear
the surgical correction of a damaged middle ear
the surgical removal of all or a portion of the labyrinth
Vestibular rehabilitation therapy
a form of physical therapy designed to treat a wide variety of balance disorders, the majority of which are caused by problems in the inner ear and vestibular nerve.
assistive listening device
transmits, processes, or amplifies sound, and can be used with or without a hearing aid.
cochlear implant
an electronic device that bypasses the damaged portions of the ear and directly stimulates the auditory nerve
a surgical procedure in which a new opening is created in the labyrinth to restore lost hearing.

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