Chapter 12 Vocab Flashcards
A reduced ability to smell
Hyposmia
Pain relief
Analgesia
People and animals quickly learn to avoid a food if it upsets the digestive system
Taste aversion
Scope to examine the eye; an observer can peer through the pupil and see magnified image of retina and blood vessels
Ophthalmoscope
With aging, lens lose elasticity; require reading glasses
Presbyopia
Inability to see well at low light levels
Night blindness
An absence or deficiency of one of the three types of cones from the retina cannot distinguish some colors from others
Colorblind
Produced sounds from the cochlea
Otoacoustic emissions
A loss of transparency of the lens
Cataract
The most common cause of blindness in the U.S.
Glaucoma
Significant or total hearing loss
Deafness
Results from an increased amount of endolymph that enlarges the membranous labyrinth
Meniere’s Disease
An acute infection of the middle ear caused primarily by bacteria and associated with infections of the nose and throat
Otitis media
Degeneration of the macula lutea of the retina in persons 50 yrs and older
Age-related macular disease
AMD
Total lack of the sense of smell
Anosmia
A device that transplants sounds into electrical signals that can be interpreted by the brain
Cochlear implant
An inflammation of the conjunctiva
Conjunctivitis
Detachment of the neural portion of the retina from the pigment epithelium
Detached retina
Surgery with a laser to correct the curvature of the cornea
LASIK
A rapid involuntary movement of the eyeballs
Nystagmus
Earache
Otalgia
A tumor arising from immature retinal cells; 2% childhood cancers
Retinoblastoma
An area of reduced or lost vision in the visual field
Scotoma
An imbalance in the extrinsic eye muscles that causes a misalignment of one eye so that its line of vision is not parallel with the other (cross eyed) and both are not pointed at same object
Strabismus
A ringing, roaring, or clicking in the ears
Tinnitus
A serious form of conjunctivitis and the greatest single cause of blindness; Chlamydia trachomatis
Trachoma
A sensation of spinning or movement in which the world seems to revolve or the person seems to revolve in space
Vertigo
