Sensory Physiology Word Scramble
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| Term | Definition |
| refracted | when light rays pass from one medium to another,their velocity or speed of transmission changes, and the rays are bent or refracted. |
| Accommodation | the ability of the eye to focus deferentially for objects of near vision (less than 6 m, or 20 feet) |
| real image | the image formed on the retina as a result of the refractory activity of the len |
| emmetropic | eye is able to accommodate properly. visual problem may result -from lenses that are too strong or too lazy (overconverging or underconverging, respectively). - |
| Myopia | near sightedness. the image normally focuses in front of the retina. a person can see close object without difficulty. correction require a concave lens which causes the light reaching the eye to diverge. |
| Hyperopia | farsightedness. the image focuses behind the retina. a person have no problem with distant vision, but need glasses with convex lenses to augment or increase the converging power of the lens for close vision |
| astigmatism | irregularities in the curvatures of the lens and/or the cornea lead to a blurred vision problem. Correction--cylindrically ground lenses which compensate the inequality in the curvature. |
| presbyopia | difficulty in focusing for near or close vision due to decreasing of elasticity of the lens. can be tested by near point of accommodation. |
| visual acuity | sharpness of vision. can be tested with a Snellen eyes chart |
| In farsightedness the light is focus_______ the retin | Behind |
| the lens required to treat myopia is a_______lens | concave lens |
| The "near point" increase with age because the ________ | elasticity |
| A convex lens, like that of the eyes produces an image that is upside down and reversed from left to right. Such an image is called a________image | real |
| during distance vision, the ciliary muscle is______, the ciliary zonule is_____, the convexity of the lens is_____and light refraction is _______ | decreased, taut,relaxed, relaxed |
| During close vision, the ciliary muscle is _______, the ciliary zonule is ________, lens convexity is _____, and light refraction is ________ | contracted, relaxed, increased, increased |
| external ear consists of | auricle (pinna), external acoustic meatus,stapes |
| structure composing the internal ear | cochlea, semicircular canal,vestibule |
| contains receptor for the sense of balance | semicircular canal, tympanic membrane |
| passage between throat and tympanic cavity | pharyngotympanic (auditory) tube |
| Ear | a complex structure containing sensory receptors for hearing and equilibrium. |
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