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122 Cards in this Set
- Front
- Back
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auditory nerve fibers
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is a nerve in the head that carries signals from the cochlea of the inner ear to the brain.
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Cochlea
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Snail-shaped, spirally wound tube in the inner ear; contains hearing-sensitive receptor cells.
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Eustachian tube
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Channel between the middle ear and the throat; auditory tube.
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external auditory meatus (Auditory canal)
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Channel leading from the ear flap to the eardrum.
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Incus
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Small anvil-shaped bone (ossicle) in the middle ear; second ossicle.
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Malleus
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Hammer-shaped, small bone (ossicle) in the middle ear.
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Oval window
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Membrane between the middle and inner ears.
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Pinna (auricle)
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Outer ear flap; auricle.
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Semicircular canals
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Passageways in the inner ear that are associated with maintaining equilibrium.
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Stapes
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Small, stirrup-shaped bone in the middle ear; third ossicle.
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Tympanic membrane (eardrum)
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Membrane between the outer and middle ear; eardrum.
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Vestibule
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Central cavity of the labyrinth, connecting the cochlea and semicircular canals.
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aqueous humor
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fluid produced by the ciliary body and found in the anterior chamber of the eye.
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cone
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photoreceptor cell in the retina; responsible for color and central vision.
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choroid
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middle, vascular layer of the eye, between the retina and the sclera.
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accommodation
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normal adjustment of the eye to focus on objects from from far to near.
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fovea centrails
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tiny pit or depression in the retina that is the region of clearest vision.
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anterior chamber
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area behind the cornea and in front of the lens and iris.
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biconvex
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having two sides that are rounded, elevated, and curved evenly; characteristic of the lens of the eye.
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conjunctiva
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delicate membrane lining the eyelids and covering the anterior eyeball.
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cornea
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fibrous transparent layer of clear tissue that extends over the anterior portion of the eyelid.
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ciliary body
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structure on either side of the lens that connects the choroid and iris; it alters the shape of the lens.
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vitreous humor
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soft, jelly-like material behind the lens; maintains the shape of the eyeball.
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rod
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photoreceptor cells essential for vision in dim light and for peripheral vision.
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iris
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colored, pigmented membrane surrounding the pupil of the eye.
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retina
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light-sensitive nerve cell layer containing photoreceptor cells (rods and cones).
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pupil
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dark opening of the eye.
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macula
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yellowish region of the retina, slightly below the optic disc; contains the fovea centralis.
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optic chiasm
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point at which optic nerve fibers cross the brain.
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refraction
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bending of light rays by the cornea, lens, and fluids of the eye to bring them into focus on the regina.
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optic disk
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region at the back of the eye where the optic nerve meets the retina.
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optic nerve
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cranial nerve carryhing impulses from the retina to the brain (cerebral cortex).
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lens
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transparent, biconvex body behind the pupil; it bends light rays to focus them on the retina.
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fundus of the eye
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posterior, inner portion of the eye.
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sclera
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tough, white outer coat of the eyeball.
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thalamus
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relay center of the brain; optic nerve fibers pass through the thalamus on their way to the cerebral cortex.
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cochlea
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snail-shaped, spirally wound tube in the inner ear; contains hearing-sensitive receptor cells.
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auditory nerve fibers
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carrying impulses from the inner ear to the brain (cerebral cortex).
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cerumen
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waxy substance secreted by the external ear; ear wax.
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incus
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sound little bone of the middle ear; shaped like an anvil.
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eustachian tube
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channel between the middel ear and the nasopharynx; auditory tube.
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auricle
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flap of the ear.
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malleus
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first little bone of the middle ear; shaped like a hammer.
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endolymph
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fluid within the labyrinth of the ear.
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labyrinth
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maze-like series of canals within the inner ear.
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auditory canal
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channel that leads from the auricle to the eardrum; auditory meatus.
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stapes
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third small bone of the middle ear; shaped like a stirrup.
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pinna
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flap of the ear; auricle.
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vestibule
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central cavity of the labyrinth, connecting the semicircular canals and the cochlea.
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tympanic membrane
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eardrum.
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oval window
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membrane between the middel and inner ear.
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organ of corti
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sensitive auditory receptive area in the cochlea of the inner ear.
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semicircular canals
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passages in the inner ear associated with maintenance of equilibrium.
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ossicle
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small bone.
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perilymph
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fluid containd in the labyrinth of the inner ear.
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acous/o
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hearing
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ambyl/o
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dim; dull
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anis/o
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unequal
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aque/o
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water
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aur/o
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ear
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blephar/o
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eyelid (palpebr/o)
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cochle/o
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cochlea (inner part of ear)
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conjunctiv/o
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conjunctiva (lines the eyelids).
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cor/o
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pupil (pupill/o)
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corne/o
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cornea (kerat/o)
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cycl/o
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ciliary body or muscle
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dacry/o
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tears; tear duct
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dipl/o
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double
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glauc/o
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gray
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ir/o
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iris (colored portion of the eye around the pupil).
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kerat/o
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cornea
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lacrim/o
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tears
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mi/o
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smaller
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mydr/o
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widen
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myring/o
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temparic membrane (eardrum).
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nyct/o
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night
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ocul/o
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eye
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ophthalm/o
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eye
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opt/o
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eye; vision.
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osssicul/o
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ossicle (small bone).
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ot/o
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ear
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palpebr/o
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eyelid.
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papill/o
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optic disc; nipple-like.
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phac/o
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lens of the eye.
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phot/o
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light.
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presby/o
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old age.
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pupill/o
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pupil (dark center of the eye).
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retin/o
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retina.
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salping/o
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fallopian tube; auditory (eustachian) tube.
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scler/o
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sclera (white of eye).
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scot/o
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darkness.
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staped/o
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stapes (middle earbone).
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tympan/o
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trympanic membrane (eardrum); middle ear.
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uve/o
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uvea; vascular layer of eye (iris, choroid, ciliary body).
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vitre/o
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glass.
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xer/o
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dry.
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-cusis
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hearing.
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-opia
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vision condition.
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-otia
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ear condition.
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-meter
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measure.
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-metry
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art; process; or science of measuring.
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-phobia
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fear.
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-plegia
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paralysis; palsy.
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-tropia
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to turn.
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oscille
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small bone.
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accommodation
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normal adjustment of the lens by the ciliary muscule.
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biconvex
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having two sides that are rounded, elevated, and curved evenly.
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olfactory
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pertaining to the sense of smell. From the Latin, olfacere, meaning "to smell".
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myopia
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nearsightedness.
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cochlea
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a snail-shaped, spirally wound tube in the inner ear.
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stapes
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one of the tiny bones in the middle ear; stirrups.
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tinnitus
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ringing sound in the ear; means "tinkling" in Latin.
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vertigo
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sensation of irregular or whirling motion either of oneself or of external objects.
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cholesteatoma
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collection of skin cells and cholesterol in a sac within the middle ear.
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pinna
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auricle; ear flap.
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sclera
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tough, white, outer coat of the eyeball.
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hyperopia
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farsightedness.
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iris
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colored portion of the eye.
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astigmatism
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defective curvature of the cornea or lens of the eye.
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conjunctiva
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delicate membrane lining the eyelids and covering the exposed surfaces of the sclera.
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cataract
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clouding of the lens, causing decreased vision.
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labyrinth
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maze-like series of canals in the inner ear.
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