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MMTC MedTerm Ch10/11
Miller Motter Medical Terminology Ch10-11 (revised)
| Question | Answer |
|---|---|
| pupil | black,circular opening in the center of the iris through which light passes as it enters the eye. |
| sclera | tough fibrous, white outer coat extending from the cornea to the optic nerve. |
| vitreous | jelly-like mass filling the inner chamber b/w the lens and retina that gives bulk to the eye. |
| diplopia | double vision |
| exopthalmus or exopthalmos | abnormal protrusion of one or both eyeballs |
| lacrimation | secretion of tears |
| nystagmus | involuntary, rapid, oscillating movement of the eyeball |
| photophobia | extreme sensitivity to, and discomfort from, life |
| scotoma | blind spot in vision |
| astigmatism | distorted vision caused by an oblong or cylindrical curvature of the lens or cornea that prevents the light rays from coming to a single focus on the retina |
| hyperopia | farsightedness; difficulty seeing close objects when light rays are focused on a point behind the retina |
| myopia | nearsightedness; difficulty seeing distant objects when light rays are focused on a point in front of the retina |
| presbyopia | impaired vision caused by old age or loss of accomodation |
| pterygium | fibrous, wing-shaped growth of conjunctival tissue that extends onto the cornea, developing most commonly from prolonged exposure to ultraviolet light |
| strabismus | a condition of eye misalignment caused by intraocular muscle imbalance |
| enuclation | excision of the eyeball |
| iridectomy | excision of a portion of an iris |
| intraocular lens(IOL)implant | implantation of an artificial lens to replace a defective natural lens |
| mydriatic | agent that causes dialation of the pupil; used for certain eye examinations |
| miotic | agent that causes the pupil to contract |
| air or gas | aer/o |
| deafness | general term for partial or complete loss of hearing |
| presbyacusis | hearing impairment in old age |
| audiologist | health professional who specializes in the study of hearing impairments |
| otoscopy | use of an otoscope to examine the external auditory canal and tympanic membrane |
| myringotomy | incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media |
| otoplasty | surgical repair of the external ear |
| irrigation of the external ear canal, often to remove excessive buildup of cerumen | ear lavage |
| myringitis | inflammation of an eardrum |
| vertigo | a turning around; dizziness |
| tinnitus | a jingling; ringing or buzzing in the ear |
| otorrhea | purulent drainage from the ear |
| otorrhagia | bleeding from the ear |
| otalgia, otodynia | earache |
| stapes | stirrup; last of the three auditory ossicles of the middle ear |
| incus | anvil; middle of the three auditory ossicles of the middle ear |
| malleus | hammer; first of the three auditory ossicles of the middle ear |
| tympanic membrane | eardrum; drum-like structure that receives sound collected in the external auditory canal and amplifies it through the middle ear |
| auricle | pinna(little ear) projected part of the middle ear |
| external ear | outer structures of the ear that collect sound |
| -acusis | hearing condition |
| tympan/o, myring/o | eardrum |
| salping/o | eustachian tube, or uterine tube |
| cerumin/o | wax |
| aur/i, ot/o | ear |
| acusi/o, audi/o | hearing |
| aque/o | water |
| blephar/o | eyelid |
| conjunctiv/o | conjunctiva |
| cycl/o | circle, cilliary body |
| corne/o, kerat/o | cornea |
| ir/o irid/o | colored circle, iris |
| lacrim/o dacry/o | tear |
| ocul/o, opthalm/o, opt/o | eye |
| phac/o, phak/o | lens, lentil |
| phot/o | light |
| presby/o | old age |
| retin/o | retina |
| scler/o | hard or sclera |
| vitre/o | glassy |
| -opia | condition of vision |
| aqueous humor | watery liquid secreted by the ciliary processes that fills the anterior and posterior chambers of the eye and provides nourishment for the cornea, iris, and lens |
| conjunctiva | mucous membrane that lines the eyelids and outer surface of the eyeball |
| cornea | transparent, anterior part of the eyeball covering the iris, pupil, and anterior chamber that functions to refract (bend) light to focus a visual image |
| eyelid | movable, protective fold that opens and closes, covering the eye |
| fovea centralis | pinpoint depression in the center of the macula lutea that is the site of sharpest vision |
| iris | colored circle; colored part of the eye located behind the cornea that contracts and dilates to regulate light passing through the pupil |
| lacrimal ducts | tubes that carry tears to the lacrimal sac |
| lens | transparent structure behind the pupil that bends and focuses light rays on the retina |
| macula lutea | central region of the retina; responsible for central vision; yellow pigment provides its color |
| nasolacrimal duct | passageway for tears from the lacrimal sac into the nose |
| optic disk | exit site of retinal nerve fibers as well as entrance point for retinal arteries and exit point for retinal veins |
| optic nerve | nerve responsible for carrying impulses for the sense of sight from the retina to the brain |
| chalazion | chronic nodular inflammation of a meibomian gland, usually the result of a blocked duct; commonly presents as a swelling on the upper or lower eyelid |
| cataract | opaque clouding of the lens causing decreased vision |
| blepharptosis | drooping of the eyelid; usually caused by paralysis |
| glaucoma | glaw-kō′mă (Fig. 10-6, D) group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision |
| hordeolum | sty; an acute infection of a sebaceous gland of the eyelid |
Created by:
evinsmc
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