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Blesi8e Ch11 Terms

[MA3] The Senses [Tier 01]

TermDefinition
accommodation the process of the lens changing shape to permit close vision.
amblyopia lazy eye; a condition characterized by the inward turning of the affected eye.
aqueous humor a watery, transparent liquid that circulates between the anterior and posterior chambers of the eye.
astigmatism blurring of the vision caused by an abnormal curvature of the cornea.
auditory pertaining to the sense of hearing
cataract an opacity of the lens of the eye resulting in blindness
cerumen wax-like brown secretion found in the external auditory canal
choroid the vascular coat of the eye between the sclera and the retina
cochlea the snail-shaped portion of the inner ear
conjunctiva a mucous membrane that lines the eyelids and covers the anterior sclera of the eyeball
cornea the transparent extension of the sclera that lies the front of the pupil of the eye.
enucleation surgical excision of the eyeball
epistaxis nosebleed; hemorrhage from the nose
eustachian tube refers to the tube of the middle ear that connects to the pharynx.
fovea centralis a depression in the posterior surface of the retina that is the place of sharpest vision.
glaucoma a disease of the eye characterized by increased intraocular pressure.
hyperopia a defect of vision so that objects can only be seen when they are far away; farsightedness
incus the anvil, the middle bone of the three in the middle ear
insidious hidden, not apparent
iris the colored, contractible tissue surrounding the pupil of the eye.
lacrimal pertaining to the tears; the glands and ducts that secrete and convey tears.
lens a part of the eye that bends or refracts images onto the retina.
malleus the largest of the three bones of the middle ear, also called the hammer.
Meniere's disease a disorder of the ear characterized by nausea, vomiting, tinnitus and hearing loss
myopia a defect in vision so that objects can only be seen when very near; near-sightedness
optic disc the blind spot where the optic nerve exits from the retina of the eye.
organ of Corti terminal acoustic apparatus in the cochlea of the inner ear.
otitis inflammation of the ear; can be referenced to the external, middle or internal ear.
otosclerosis condition characterized by progressive deafness cause by the fixation of the stapes of the middle ear.
polyps a tumor with a pedicle, especially on mucous membranes, such as in the nose, rectum or intestines.
presbycusis impairment of the acute hearing in old age.
presbyopia a defect of vision in advancing age involving loss of accommodation
pupil the contractible opening in the center of the iris for the transmission of light.
receptor peripheral nerve ending of a sensory nerve that responds to stimuli
retina the innermost layer of the eye that receives the image formed by the lens.
retinopathy a degeneration of the retina caused by a decrease in blood supply.
sclera the white or sclerotic outer coat of the eye.
semicircular canals structures located in the inner ear that are responsible for maintaining equilibrium.
sensorineural refers to a sensory nerve
stapes one of the three bones of the middle ear.
strabismus an eye disorder caused by imbalance of the ocular muscles.
tinnitus a ringing or tinkling sound in the ear that is heard only by the person affected
tympanic membrane the ear drum
vitreous humor the substance that fills the vitreous body of the eye behind the lens.
Created by: MaesterRay
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