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specialsense test1
special senses test review wk 1
| Question | Answer |
|---|---|
| conjunctiva | membrane lining the inner surfaces of the eyelids; clear |
| cornea | fibrous, transparent tissue that extends over the pupil and iris |
| what is the function of the cornea | bend/refract rays of light |
| choroid | supply nutrients to the eye; vital part of the eye |
| what is known as the uvea of the eye | choroid, iris, ciliary body |
| zonules | fine thread like attachments connect the ciliary body and lens; allows eyes to adjust shape and thickness of lens |
| accomidation | focus |
| aqueous humor | fluid the ciliary body secretes |
| what is the function of the aqueous humor | maintains the shape of the anterior eye |
| vitreous humor | maintains the shape of the eye, is not constantly reformed |
| retina | thin, delicate, sensitive nerve layer of eye; functional part of the eye |
| rods | photoreceptors that see black and white |
| cones | photoreceptors that see color and bright lights |
| how many rods are there | 120 million |
| how many cones are there | 6.5 million |
| nerve impulses travel from eye to brain using what | optic nerve |
| optic disc | where the optic nerve meets the retina |
| macula | small, oval, yellowish area adjacent to the optic disc |
| fovea centralis | central depression; sharpest vision of the eye |
| hemi | half |
| an | without |
| opsia | vision |
| blephar/o | eyelid |
| conjunctiv/o | conjunctiva |
| corne/o | cornea |
| cycl/o | ciliary body |
| kerat/o | cornea |
| palpebr/o | eyelid |
| uve/o | uvea; vascular layer of the eye |
| presby/o | old age |
| xer/o | dry |
| astigmatism | defective curvature of the cornea or lens |
| hyperopia | farsightedness |
| myopia | nearsightedness |
| presbyopia | impairment of vision as result of old age |
| glaucoma | increased intraocular pressure results in damage to the retina and optic nerve with loss of vision |
| pinna/auricle | projecting part/flap |
| tympanic membrane | eardrum |
| 3 smallest bones in body; ossicle chain | malleus, incus, stapes |
| eustachian tube | used to equal the pressure in the middle ear to the environment |
| cochlea | snail-shaped structure; how you hear; interperates sound waves |
| myco | fungus |
| osis | condition of |
| vestibular | balance |
| rrhea | flow |
| dacry/o | tear |
| aniscoria | unequal |
| meniere disease | disorder of the labyrinth of the inner ear |
| otitis media | inflammation of the middle ear (ear infection) |
| tinnitus | sensation of noises in the ear |
| vertigo | sensation of irregular or whirling motion either of oneself or of external objects |
| tonometry | used to measure if a person has glaucoma |
| macular degeneration | loss of vision; progressive damage to the macula |
| ot/o | ear |
| opthal | eye |
| ology | study of |
| meatus | opening |
| cerumen | ear wax |
| sclerosis | hardening |
| 2 types of deafness | conductive/ neurosensory |
Created by:
a1h12
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