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flashcards
| Question | Answer |
|---|---|
| eustachian Tube | connects the middle ear with the back of the throat and nose |
| oval window | covered by a thin membrane and between the middle ear and the inner ear |
| Semicircular canals | are curved tubes in your inner that helps provide your sense of bala nce |
| cochlea | a spiral tube containing recoptors that sense of vibratoins |
| Lens | bends the light rays so they come togethere at a point inside |
| retina | is the light senstive tissue that lines the inner ear |
| Cornea | the clear covering at the front of your eye |
| Iris | controls the size of the pupil |
| cavity | the hole in the enamel |
| nerve Impulses | electrical signals that are transmitted along the nerves |
| cones | can distinguish colors but are less sentive to light |
| Cataract | is a condition in which the lens becomes cloudy and blocks light entering the eye |
| color blindness | a hereditary disorder in wich the person cannot distinguish between certain colors |
| astigmatism | a condition that causes blurred vision at all distances |
| Glaucoma | is causesedd by increasing preasure of the fliuds inside the eye |
| nearsightednesss | a person sees closer objects, btu objects at a distance look blurred |
| farsightedness | a person sees distant objects, btu objects at a closer look blurred |
| plaque | a material made of saliva food partilse and bacteria |
| Pulp | the softer inner tissue that contains blood vessels and nerves |
| root | the part below the gum that fits into the jaw line |
| molars | flat teeth large with severral rounded points that grind up food into bits |
| enomel | a hard non living dense white matrerisal containing calcium |
| Pre- molars | are flat teeth with double points that tear and crush food |
| Incisors | are sharp front teeth that bite and cut food |
| Dentin | Forms the body of the tooth and extends down in to the roots |