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Study Guide Ch 17
Chabner, Language of Medicine 8th Edition, Chpt 17 Senses: Eye & Ear
| Question | Answer |
|---|---|
| 1) Fiberous layer of clear tissue that extends over the anterior portion of the eye and is continuous with the white of th eyes | Cornea |
| 2) Yellowish region in the retina; contains the fovea centralis | Macula lutea |
| 3) What eye structure is transparent, biconvex, and focuses light on the retina? | Lens |
| 4) Place where optic nerve fibers cross in the brain | Optic chiasma |
| 5) Adjustment of the lens by the ciliary body | Accommodation (normal adjustment of the eye to focus) |
| 6) Photosensitive receptor cells of the retina; make the perception of color possible | Rods |
| 7) The combining for for cornea is? | Kerat/o |
| 8) The combining form for lens is? | Phak/o |
| 9) The meaning of palpebr/o is? | eyelid (also blephar/o) |
| 10) An eye inflammation commonly calld "pinkeye is" | Conjunctivitis |
| 11) Impairment of vision due to old age | Presbyopia |
| Myopia (is which form of sightedness?) | Nearsightedness |
| 13) Defective curvature of the eye | Astigmatism |
| 14) Glaucoma is primarily diagnosed by | Tonometry |
| 15) A blind spot; area of depressed vision surrounded by an area of normal vision | Scotoma (darkness) |
| 16) Macular degeneration produces | loss of central vision |
| 17) Small hard mass on the eyelid; formed from a sebaceious gland enlargement: | Chalazion |
| 18) Snail shaped, spirally wound tube in the inner ear is the | cochlea |
| 19) Channel between the middle ear and the nasopharynx | Eustachian tube |
| 20) Myring/o means | tympanic membrane (myears are myringing!) |
| 21) Bacterial infection of the middle ear | Suppurative otitis media |
| 22) Tinnitus | ringing in the ears |
| 23) Visual examination of the ear | Otoscopy |
| 24) nerve deafness occurring with aging | presbycusis |
| 25) Fungal infection of the ear | otomycosis (myc/o = fungus) |
| 26) Contains sensitive cells (rods and cones) that transmit light energy to nervous impulses | RETINA |
| 27) Contains muscles that control the shape of the lens and secrete aqueous humor | CILIARY BODY |
| 28) Transparent body behind the iris and in front of the vitreous humor; refracts light rays to bring them into focus on the retina | LENS |
| 29) Jelly-like material behind the lens; helps to maintain the shape of the eyeball | VITREOUS HUMOR |
| 30) Dark center of the eye through which light rays enter | PUPIL |
| 31) Vascular layer of the eyeball that is continuous with the iris | CHOROID |
| 32) Delicate membrane lining the eyelids and covering the anterior of the eyeball | CONJUNCTIVA |
| 33) Fibrous layer of clear tissues that extends over the anterior portion of the eyeball | CORNEA |
| 34) Colored portion of the eye; surrounds the pupil | IRIS |
| 35) Tough, white outer coat of the eyeball | SCLERA |
| 36) inflammation of the vascular layer of the eye | uveitis |
| 37) Condition of dry eyes | xerophthalmia |
| 38) Outward deviation of the eye | exotropia (exo - outward) |
| 39) Inward deviation of the eye | esotropia (eso - inward) |
| 40) Absence of the lens of the eye | aphakia |
| 41) absence of vision in half of the visual field | hemianopsia (hemi = half) |
| 42) abnormal deviations of the eye | strabismus |
| 43) Increased intraocular pressure results in retinal and optic nerve damage | Glaucoma |
| 44) Localized purulent infection of a sebaceous gland in the eyelid | hordeolum (stye) |
| 45) Clouding of the lens causes decreased vision | cataract |
| 46) Retinal micoaneurysms, hemorrhages occur secondary to an endorcrine condition | diabetic retinopathy |
| 47) Deterioration of the macula lutea of the retina | macular degeneration |