Final Flashcards
the amount that an object’s image is enlarged
magnification
the extent to which detail in an image is preserved during the magnifying process
resolving power
the degree to which image details stand out against
contrast
the circle of light you see when looking into the microscope
field of view
once an objective has been focused, you can rotate to another one and the image will remain in coarse focus, requiring only slight movement of the fine focus knob
parfocal
the distance through which you can move the specimen and still have it remain in focus
depth of field
the center of the field of view remains about the same for each objective
parcentral
objectives are…
parcentral
the space between the objective lens and the slide
working distance
Light source
provides light to see slide
Condenser
focus light on slide
Stage
holds slide
focusing knobs
bring slide into focus
objectives
magnify
ocular(s)
enable you to see slide
ObMP low power
4x
ObMP medium-power
10x
ObMP high-dry
40x
ObMP oil-immersion
100x
How do you calculate Total Magnifying Power
ObMP x OcMP
total magnifying power low power
40x
total magnifying power medium power
100x
total magnifying power high dry
400x
total magnifying power oil immersion
1000x
numerical aperture low power
0.10
numerical aperture medium power
0.25
numerical aperture high dry
0.65
numerical aperture oil immersion
1.25
image orientation
upside down and backwards
a stable internal environment
homeostasis
straw-colored fluid that blood cells are suspended in
plasma
carries oxygen-depleted blood to the capillary beds of the lungs, where oxygen is loaded and where excess carbon dioxide is unloaded
pulmonary circuit
takes oxygen-rich blood from the heart and conveys it to the rest of the body’s capillary beds, where oxygen is unloaded and excess carbon dioxide is picked up
systemic circuit
connects two sets of capillary beds
portal vein
the clumping of erythroctes
agglutination
the force that the blood exerts on the walls of the arteries
blood pressure
veins use these to prevent the backflow of blood away from the heart
valves
the primary pacemaker of the heart located in the right atrium that functions independently of the nervous system, firing rhythmically. Every time it fires in initiates a message to contract
sinoatrial node
the size of the thorax and the pleural sacs decreases, the pressure in the lungs increases, and air flows out of the bod down its concentration gradient
positive pressure exhalation