Med-Surg Chp 41 Introduction to the Sensory System Flashcards
Process in which the lens of the eye changes shape to view objects that are near or distant.
accommodation
precise measurement of hearing acuity
audiometry
test that assesses the vestibular reflexes of the inner ear that control balance
caloric stimulation test
ability to discriminate letters, words, and the details of any image
central vision
Hearing loss that is due to interference in the transmission of sound waves to the inner ear
conductive hearing loss
inflammation of the conjunctiva
conjunctivitis
unit for measuring the intensity of sound
decibels
The method used to evaluate vestibular function, the mechanisms that facilitate maintaining balance, by measuring the duration and velocity of eye movements during caloric stimulation
electronystagmography
the closest point at which a person can clearly focus on an object
near point
uncontrolled oscillating movement of the eyeball
nystagmus
examination of the fundus or interior of the eye
ophthalmoscopy
handheld instrument used to inspect the external acoustic canal and tympanic membrane
otoscope
disorder in which an extended or protruded upper eyelid delays closing or remains partially open
proptosis
changing of direction and speed of a ray of light
refraction
drooping of the eyelids
ptosis
assessment technique used to detect hearing loss by comparing bone conduction and air conduction of sound using a tuning fork
Rinne test
assessment technique used to evaluate a person’s ability to sustain balance
Romberg test
Hearing loss that is the result of nerve impairment
sensorineural hearing loss
measurement of intraocular pressure
tonometry
An instrument that produces sound in the same range as human speech; used to screen for conductive or sensorineural hearing loss
tuning fork
ability to see far images clearly
visual acuity
test of peripheral vision and detection of gaps in the visual field
visual field examination
Assessment technique used to measure hearing loss by striking a tuning fork and placing its stem in the midline of the client’s skull or center of the forehead; a person with normal hearing perceives the sound equally well in both ears
Weber test
