hemotology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| eyepiece | ocular lens magnifies 10x
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| body tube | carries filtered light from objective lens to ocular lens
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| coarse adjustment knob | generally focuses specimen
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| fine adjustment knob | precisely focuses specimen
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| nosepiece | holds objective lenses, adjustable
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| objectives | variable magnifying lenses
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| stage clip | holds slides in place, adjusts location
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| arm | connects magnifying lenses to base of microscope
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| stage | location of specimen
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| mechanical stage | holds slide/ specimen in place, allows for slight rearrangement of location
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| iris diaphragm | allows increase or decrease of light through condenser
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| condenser | concentrates light rays on specimen
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| inclination joint | point of arm adjustment (bends)
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| pillar | connects base to stage
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| base | foot of microscope
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| mirror | reflects lights through condenser
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| sub stage adjustment lever | adjust height of condenser
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| objective | low power 10x
high power 45x
oil immersion 97x
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| total magnification | magnification of ocular X magnification of objective lens
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| low power= high power= oil immersion= | 10x X 10x= 100x
45x X 10x= 450x
97x X 10x= 970x
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| transport | 1. firmly grasp the curved arm of the microscope
2. lift microscope up
3. place the other hand under there base of the microscope and carry to desired location.
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| storage | 1. raise body tube & remove slide
2. condenser down
3. clean off objectives w/ lens tissue
4. place 10x objective over stage opening
5. lower body tube w/ course adjustment knob (all the way down) place cover over microscope
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| parfocal | microscopes are constructed so that changing from a lower to a higher magnification requires only an adjustment w/ the fine adjustment knob. always focus on 10x first before going on to 45x or 97x. locate the area slide u wish to examineunder low power
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| place microscope | 8-14 inches away from light source
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| raise condenser | all the way up
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| use two hands to | adjust the concave side of the mirror so the brightest possible light comes through the glass top of the condenser
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| lower condenser | half a turn
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| looking from the side | lower the 10x objective close to the slide w/o touching
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| to focus | look into the eyepiece and turn course adjustment knob toward yourself slowly
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| how to bring into clear focus | the fine adjustment knob
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| after focusing on 10x | swing 45x objective into place
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| final focus 45x | w/ adjustment knob
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| oil immersion | raise condenser all the way up
turn nosepiece so objective is moved to the side
place 1 drop of oil on the slide where light is shining through the stage
turn nosepiece so 97x is in the oil
focus w/ fine adjustment only
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Created by:
t4achange
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