Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Medical Terminology
Mod. 8: Eyes and Ears
| Question | Answer |
|---|---|
| accommodation | Adjustment of the lens's curvature to allow for vision at various distance |
| acoustic neuroma | a tumor of the eighth cranial nerve sheath; although benign, it can press on surrounding tissue and produce symptoms; also called an acoustic or vestibular schwannoma or acoustic neurilemmoma |
| age-related macular degeneration (AMD) | Deterioration of the macula associated with aging; macular degeneration impairs central vision |
| aqueous humor | fluid that fills the eye anterior to the lens |
| astigmatism | An error of refraction caused by irregularity in the curvature of the cornea or lens |
| auditory tube | The tube that connects the middle ear with the nasopharynx and serves to equalize pressure between the outer and middle ear |
| Auditory Tube Root | Salping/o |
| cataract | opacity od the lens of the eye |
| cerumen | The brownish, wax-like secretion formed in the external ear canal to protect the ear and prevent infection |
| choroid | The dark, vascular, middle layer of the eye |
| choroid roots | chori/o, choroid/o |
| ciliary body | the muscular portion of the uvea that surrounds the lens and adjusts its shape for near and far vision |
| ciliary body root word | cycl/o |
| cochlea | The coiled portion of the inner ear that contains the receptors for hearing |
| cochlea root word | cochle/o |
| conductive hearing loss | hearing impairment that results from blockage of sound transmission to the inner ear |
| cones | A specialized cell in the retina that responds to light;cones have high visual acuity, function in bright light, and respond to colors |
| conjunctiva | the mucous membrane that linesthe eyelids and covers the eyeball's interior surface |
| conjunctivitis | inflammation of the conjunctiva;pink eye |
| convergence | coordinated movement of the eyes toward fixation on the same point |
| cornea | the clear, anterior portion of the sclera |
| cornea roots | corne/o, kerat/o |
| diabetic retinopathy | Degenerative changes in the retina associated with diabetes mellitus |
| equilibrium | The sense of balance |
| fovea | The tiny depression in the retina that is the point of sharpest vision; fovea centralis, central fovea |
| glaucoma | an eye disease caused by the increased intraocular pressure that damages the optic disk and causes vision loss; usually results from faulty fluid drainage from the anterior eye |
| gustation | The sense of taste |
| hearing receptors | The sense or perception of sound |
| hyperopia | A refractive error in which light rays focus behind the retina and objects can be seen clearly only when far from the eye; "farsightedness" or "hypermetropia" |
| incus | The middle ossicle of the ear |
| iris | The muscular colored ring between the lens and the cornea; regulates the amount of light that enters the eye by altering the size of the pupil at its center |
| iris roots | ir, irid/o, irit/o |
| labyrinth | The inner ear, named for its complex structure, which resembles a maze |
| lacrimal gland | A gland above the eye that produces tears |
| lacrimal roots | lacrim/o, dacry/o |
| lens | The transparent, biconvex structure in the anterior portion of the eye that refracts light and functions in accommodation |
| lens roots | lent/i, phak/o |
| macula | A small spot or colored area; used alone to mean the yellowish spot in the retina that contains the fovea |
| malleus | The ossicle of the middle ear that is in contact with the tympanic membrane and the incus |
| myopia | A refractive error in which lightrays focus in front of the retina and objects can be seen clearly only when very close to the eye; "nearsightedness" |
| myringotomy | Surgical incision of the tympanic membraine; performed to drain the middle war cavity or to insert a tube into the tympanic membrane for drainage |
| meniere disease | A disease associated with increased fluid pressure in the inner ear and characterized by hearing loss, vertigo, and tinnitus |
| olfaction | The sense of smell |
| olfaction root | osm/o |
| ophthalmia neonatorum | Severe conjunctivitis usually caused by infection with gonococcus during birth |
| optic disk | The point where the optic nerve joins the retina; at this point, there are no rods or cones; also called the blind spot or optic papilla |
| orbit | The bone cavity that contains the eyeball |
| ossicles | The small bones of the middle ear; the malleus, incus, and stapes |
| otitis externa | Inflammation of the external auditory canal; "swimmer's ear" |
| otitis media | Inflammation of the middle ear with accumulation of seroous (watery) or mucoid fluid |
| otosclerosis | Formation of abnormal and sometimes hardened bony tissue in the ear; it usually occurs around the oval window and the footplate (base) of the stapes, causing immobilization of the stapes and progressive hearing loss |
| palpebra | An eyelid; a protective fluid (upper or lower) that closes over the anterior surface of the eye |
| palpebra roots | palpebr/o, blephar/o |
| phacoemulsification | Removal of a cataract by ultrasonic destruction and extraction of the lens |
| pinna | The projecting part of the outer ear; auricle |
| presbyopia | Changes in the eye that occur with age; the lens loses elasticity and the ability to accommodate for near vision |
| proprioception | The awareness of posture, movement, and changes in equilibrium; receptors are located in muscles, tendons, and joints |
| pupil | The opening at the center of the iris |
| pupil root | pupil/o |
| refraction | The bending of light rays as they pass through the eye to focus on a specific point on the retina; also the determination and correction of ocular refractive errors |
| retina | The innermost, light-sensitive layer of the eye; contains the rods and cones, the specialized receptor cells for vision |
| retina root | retin/o |
| retinal detachment | Separation of the retina from its underlying layer |
| rod | A specialized cell in the retina that responds to light; rods have low visual acuity, function in dim light, and do nor respond to color |
| sclera | The tough, white, fibrous outermost layer of the eye |
| sclera root | scler/o |
| semicircular canals | The three curved channels of the inner ear that hold receptors for equilibrium |
| sensorineural hearing loss | Hearing impairment that results from damage to the inner ear, eighth cranial nerve, or auditory pathways in the brain |
| sensory receptor | A sensory nerve ending or a specialize structure associate with a sensory nerve that responds to simuli |
| spinal organ | The hearing receptor, which is located in the cochlea of the inner ear |
| stapedectomy | surgical removal of the stapes; it may be combined wu=ith insertion of a prosthesis to correct otosclerosis |
| stapes | the ossicle that is in contact with the inner ear |
| stapes roots | staped/o, stapedi/o |
| tactile | pertaining to the sense of touch |
| tinnitus | A sensation of noises, such as ringing or tinkling, in the ear |
| trachoma | An infection caused by Chlamydia trachomatis leading to inflammation and scarring of the cornea and conjunctiva; a common cause of blindness in underdeveloped countries |
| tympanic membrane | The membrane between the external auditory canal and the middle ear; the eardrum |
| tympanic membrane roots | myring/o, tympan/o |
| uvea | The middle, vascular layer of the eye that consists of the choroid, ciliary body, and iris |
| uvea roots | uve/o |
| vertigo | An illusion of movement, as of the body moving in space or the environment moving about the body; usually caused by distrubances in the vestibular apparatus; used lonely to mean dizziness or lightheadednesss |
| vestibular apparatus | The portion of the inner ear that is concerned with the sense of equilibrium; it consists of the vestibule and the semicircular canals |
| vestibular apparatus root | vestibul/o |
| vestibule | The chamber in the inner ear that holds some of the receptors for equilibrium |
| vestibulocochlear nerve | The nerve that transmits impulses for hearing and equilibrium from the ear to the brain; eighth cranial nerve; auditory or acoustic nerve |
| vision | The sense by which the shape, size, color of objects are perceived by means of the light they give off |
| visual acuity | Sharpness of vision |
| vitreous body | The transparent jelly-like mass that fills the eyeball's main cavity; also called vitreous humor |
Created by:
Learning=Earning
Popular Medical sets