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Chabner, Language of Medicine 8th Edition, Chpt 17 Vocabulary

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
accommodation   show
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anterior chamber   show
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aqueous humor   show
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biconvex   show
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show middle, vascular layer of the eye, between the retina and the sclera  
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show structure on each side of the lens that connects the choroid and iris. It contains ciliary muscles, which control the shape of the lens, and it secretes aqueous humor.  
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show photoreceptor cell in the retina that transforms light energy into a nerve impulse. responsible for color and central vision  
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show delicate membrane lining the eyelids and covering the anterior eyeball  
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cornea   show
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show tiny pit or depression in the retina that is the region of clearest vision  
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show posterior, inner part of the eye  
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iris   show
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lens   show
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show yellowish region on the retina lateral to and slightly below the optic disc; contains fovea centralis, which is the area of clearest vision  
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show point at which optic nerve fibers cross in the brain  
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show region at the back of the eye where the optic nerve meets the retina. it is the blind spot of the eye because it contains only nerve fibers, no rods or cones, and is thus insensitive to light  
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show cranial nerve carrying impulses from the retina to the brain (cerebral cortex)  
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pupil   show
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show bending of light rays by the cornea, lens, and fluids of the eye to bring the rays into focus on the retina  
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show light-sensitive nerve cell layer of the eye containing photoreceptor cells (rods & cones)  
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rod   show
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show tough, white outer coat of the eyeball  
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show relay center of the brain. optic nerve fibers pass through here on their way to the cerebral cortex  
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vitreous humor   show
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show defective curvature of the cornea or lens of the eye  
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show farsightedness  
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show nearsightedness  
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presbyopia   show
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cataract   show
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show small, hard, cystic mass (granuloma) on the eyelid; formed as a result of chronic inflammation of a sebaceous gland along the margin of the eyelid  
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show retinal effects of diabetes mellitus include microaneurysms, hemorrhages, dilation of retinal veins, and neovascularization  
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show increased intraocular pressure results in damage to the retina and optic nerve with loss of vision  
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show localized, purulent, inflammatory staphylococcal infection of a sebaceous gland in the eyelid  
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macular degeneration   show
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nystagmus   show
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show two layers of the retina separate from each other  
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strabismus   show
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show one eye turns inward; cross-eyed  
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exotropia   show
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show upward deviation of one eye  
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hypotropia   show
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show partial loss of vision or lazy eye  
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diplopia   show
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show channel that leads from the pinna to the eardrum  
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auditory meatus   show
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show carry impulses from the inner ear to the brain (cerebral cortex), these fibers compose the vestibulocochlear nerve (cranial nerve VIII)  
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auditory tube   show
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auricle   show
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show waxy substance secreted by the external ear; also called ear wax  
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show snail-shaped, spirally wound tube in the inner ear; contains hearing-sensitive receptor cells  
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endolymph   show
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show auditory tube  
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incus   show
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show maze-like series of canals of the inner ear  
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malleus   show
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show sensitive auditory receptor area found in the cochlea of the inner ear  
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show small bone of the ear  
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show membrane between the middle ear and the inner ear  
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perilymph   show
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show auricle; flap of the ear  
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show passages in the inner ear associated with maintaining equilibrium  
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show third ossicle of the middle ear. means stirrup  
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tympanic membrane   show
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show central cavity of the labyrinth, connecting thhe semicircular canals and the cochlea. contains two structures, the saccule and utricle, that help maintain equilibrium  
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acoustic neuroma   show
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show collection of skin cells and cholesterol in a sac within thhe middle ear  
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show loss of the ability to hear  
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show disorder of the labyrinth of the inner ear; elevated endolymph pressure within the cochlea and semicircular canals  
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otitis media   show
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show invasion of bacteria in the middle ear, pus formation occurs  
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show noninfectious inflammation with accumulation of serous fluid  
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otosclerosis   show
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show sensation of noises (ringing, buzzing, whistling, booming) in the ears  
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vertigo   show
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show absence of the lens of the eye  
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