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Body Sys2- Sens Sys

Medical Terminology

pinna the outer ear flap that forms the visible part of the ear; also known as the auricle
external auditory canal the narrow passage that leads from the pinna to the tympanic membrane
tympanic membrane also known as the eardrum; a thin membrane that separates the external auditory canal from the middle ear and transmits sound vibrations to the ossicles
ossicles three tiny connected bones in the middle ear that transmit sound vibrations from the tympanic membrane to the inner ear
vestibular system structures in the inner ear that form the sensory system responsible for detecting movement and providing a sense of balance
Eustachian tube named after the sixteenth century anatomist; a small passageway that connects the middle ear to the throat, enabling the movement of air to equalize middle-ear and atmospheric pressure
iris the thin, colored, circular structure in the eye that controls the amount of light entering the eye by contracting and expanding
pupil the opening in the iris that lets light into the eye
lens the flexible, transparent, egg-shaped structure in the eye that helps the cornea focus light on the retina by changing its shape
cornea the transparent front-most part of the eye that helps the lens focus light on the retina
retina the light-sensitive layer of cells that line the inner surface of the eye and transmit light signals to the brain
vitreous humor the clear, gel-like fluid that fills the eye between the lens and the retina
otorhinolaryngology also known as otolaryngology or ENT (ear, nose, and throat); the branch of medicine that deals with diseases and disorders of the head and neck
audiology the branch of science that deals with hearing and balance, including the evaluation and rehabilitation of patients with related conditions
ophthalmology the branch of medicine that deals with diseases and disorders of the eye
cerumen impaction a collection of ear wax that blocks the external auditory canal, impairing the ability to hear
tinnitus a symptom characterized by hearing noise, such as ringing or buzzing, for which there is no external source
vertigo a symptom characterized by the sensation that one (or one’s surroundings) is spinning or moving
deafness the partial or complete loss of the ability to hear
glaucoma a group of diseases characterized by elevated pressure within the eye (intraocular pressure, or IOP), which can lead to damage of retinal structures with resulting blindness
color blindness a group of mostly genetic (inborn) disorders characterized by a decreased or absent ability to see color or perceive color differences
cataract clouding of the normally transparent lens of the eye; it is the most common cause of blindness
conjunctivitis also called pinkeye; an inflammation of the conjunctiva, which is the outermost layer of the eye, caused by infection or allergies
audiometry a procedure in which a person’s ability to hear is tested using an electronic device called an audiometer
pure tone audiometry the most common type of audiometry used to diagnose and characterize hearing loss; it tests the ability to hear a variety of single-frequency, or pure, tones
caloric reflex test a test of the vestibular system performed by irrigating the external ear canal with warm or cold water
tympanometry a test used to characterize the mobility of the tympanic membrane and ossicles
visual acuity the acuteness, or clearness, of vision, typically measured by having a person read alphabetic characters printed on a chart positioned a set distance away
refraction the measurement and correction of the eye’s focusing system using corrective lenses
tonometry the measurement of intraocular pressure
ophthalmoscopy the examination of the interior of the eye using a viewing device called an ophthalmoscope
ear irrigation washing of the external auditory canal using a stream of warm water in order to remove a cerumen impaction or foreign body
hearing aid a small electronic device placed into the external auditory canal in order to improve one’s hearing
ear drops (otic drops) liquid medication placed into the external auditory canal to treat external ear infections, typically containing antibiotics and anti-inflammatory drugs
tinnitus masking a treatment for tinnitus that involves the use of white noise, or sounds that are generated to mask or hide other sounds
miotic drug a drug that causes miosis, or constriction of the iris, which makes the pupil smaller; often used to treat certain kinds of glaucoma
contact lens a translucent disc placed on the surface of the cornea to correct refractive (focus) problems
antihistamine a type of medication that blocks the effects of histamine, a compound released by the body that causes the signs and symptoms of allergic reactions
cochlear implant an electronic device that is surgically implanted into the cochlea, or hearing organ in the inner ear, for persons with severe hearing loss
ear tube surgery the implanting of a tiny drainage tube into the tympanic membrane, often used to treat or prevent middle-ear infections in children
otoplasty surgery intended to restore or improve the appearance of the pinna
tympanoplasty surgery intended to repair and restore the function of the tympanic membrane and ossicles
phacoemulsification a method for removing a cataract that uses ultrasound to liquefy the lens
corneal transplant the surgical replacement of a portion of the cornea using tissue obtained from an organ donor
Lasik an acronym that stands for Laser-Assisted in situ Keratomileusis, which is the surgical reshaping of the cornea intended to correct certain refractive (focus) problems
Created by: rleroux