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the senses

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
5 special senses   vision,hearing,equilibrum,smell,taste  
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5 general senses   preasure,temperature,pain,touch,position  
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thin membrane that lines the inner surface of eyelid and covers the white of eye   conjunctiva  
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where are tears produced   lacrimal glands  
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function of the nasolacrimal duct   drains tears into ducts near the nasal corner of eye  
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middle,pigmented tunic of the eyeball   choroid  
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which tunic contains the photoreceptors   retina  
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refraction   bending of light rays as they pass from one substance to another of diffrent density  
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transparent portion of the sclera   cornea  
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4 parts of the eye that participate in refraction   cornea,aqueous humor,lens,vitreous body  
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aqueous humor   watery fluid that fill most of the eyeball anterior to the lensand helps maintain the slight foward curve of the cornea  
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vitreous body   soft jelly like substance that fills entire space posterer to the lens,maintains shape of eyeball and aids in refraction  
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2 receptors cell of the eye   rods and cones  
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what kind of light rods function in   dim light  
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fovea centralis   tiny depressed area near optic nerve,point of sharpest vision  
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color blindness results from a lack of what   retinal cones  
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what is the rod pigment   rhodopsin  
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night blindness results from a deficiency of what vitamin   vit A  
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visual impuses travel through the optic nearve to which part of the brain   visual center in the occipital cortex of the brain  
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function of the iris   colored or pigmented part of the eye composed of two sets of muscle fibers, governs the size of the central opening  
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is iris extrinsic or intrinsic   intrinsic  
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name of the extrinsic eye muscle that circles the bottom of the eyeball   inferior oblique  
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prebyopia   loss of visual accommodation that occurs w age,leading to farsightedness  
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2 sensory nerves that supply the eye   optic nerve,ophthalmic branch of the trigeminal nerve  
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optic nerve   carried visual impulses from the retinal rods and cone to the brain  
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ophthalmic branch of trigeminal nerve   carried impulses of pain,touch,and temp from the eye and surrounding parts of the brain  
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optic disk   blind spot  
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nerve that supplies almost all extrinsic eye muscles   oculomotor nerve  
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hyperopia   farsightedness,abnormally short eyeball  
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astigmatism   caused by irregularity in the curvature of the cornea or the lens  
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scientific term for pinkeye   acute conjunctivitis  
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what is the opacity of the lens called   cataract  
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glaucoma   condition characterized by excess pearsure of the aqueous humor  
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visible external portion of the ear   pinna(auricle)  
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where is wax pruduced   external auditory canal  
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common name for tympanic membrane   eardrum  
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2 parts of the ear that the tympanic membrane seperate   external auditoy canal,middle ear cavity  
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name for the 3 small bones in the middle ear   ossicles  
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which of the occicles come in contact with the tympanic membrane   malleus  
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what does the eustachian tube connect   middle ear cavity and throat/pharynx  
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what kind of vestibule contain   equilibrium  
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coiled division of the inner ear that contains the receptors for hearing   cochlea  
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organ for hearing   organ of corti  
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what form of equilibrium do maculae function in   stapes  
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what are cristae   receptor for dynamic equilibrium  
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what kind of movement do semicircular canals detect   body is spinning or moving in diffrent directions  
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otitis media   infection and inflamation of inner ear cavity  
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common name for otitis externa   swimmers ear  
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otosclerosis   a heredity bone disorder that prevents normal vibration of the stapes  
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which part of the tounge are sweet taste most acutely experienced   tip of the tounge  
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the interpretation of smell is closely related to what other sence   sense of taiste  
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proprioceptors   sensory receptor that aids in judging body position and changes in position,located in muscles, joints and tendons  
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where are the receptors for pain   free nerve endings  
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analgesics   a drug that relieves pain  
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endorphins   released naturally from certain regions of the brain and are associated with the control of pain  
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sensory adaption   gradual loss of sensation when sensory receptors are exposed to continuous stimulation  
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structers that protect the eye   skull bones of the eye orbit,upper and lower eyelids  
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rods   dim light  
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cones   bright light, sharp image  
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3 divisions of the ear   outer,middle,inner  
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presbycusis   slowly progressive loss that often accompanies aging  
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taiste   tounge  
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smell   epithelium of the superior region of the nasal cavity  
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strabismus   divation of the eye that resuls from lack of coordination of the eyeball muscles  
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cones are located   in the back of the eye  
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3 colors absorbed by cones   red,green,blue  
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how do we see colors like orange and purple   range of color, each type of cone overlaps  
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what happens in the cone of colorblind people   some cones can simply not see color  
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2 organs that are the bodys organ detectors   eyes,ears  
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3 organs of balance or equilibrium   semicircular canals,utricle,saccule  
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enucleation   removal of eyeball  
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ophthalmia neonatorum   acute infection of a new born  
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trachoma   acute eye infection caused by clamdia  
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retinal detachment   retina seperates from underlying layer of th eye  
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strabismus   deviation of the eye resulting in lack eye eyeball muscle coordiantion  
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