Microscope A+P
Microscope Anatomy and Physiology
Microscope Terms and Nomenclature
Head: houses ocular and objective lenses
Binocular: Tow ocular pieces adjust for your own interpupillary distance
Ocular Lenses: Magnify at power of 10x and are found on the top of the head of the microscope.
Rotating Nosepiece: Revolving Mechanism found at the bottom of the head of the microscope that holds objective lenses
Objective Lenses: Magnify at a power of 4x, 10x, 40x, and 100x
Arm: Handle; connects head to base
On/Off Switch
Rheostat: Dimmer Know, controls brightness (light intensity)
Stage: The platform that the slide is placed on.
Mechanical Stage: Lever arm/ apparatus that holds the slide firmly in place.
Iris Diaphragm: Reduces the amount of light by opening or closing.
Light Source/ Illuminator
Axis Controls: Found below the stage; move the mechanical stage in two axis planes
X Axis Control: Moves Mechanical Stage along the X Axis. (Right to Left)
Y Axis Control: Moves Mechanical Stage along the Y Axis. (Forward to Back)
Base: The Bottom of the microscope.
Coarse Adjustment: Large Knob that is used with the 4x and 10x only.
Fine Adjustment: Small knob that is used in 40x and 100x.
Real Image: Projected by the objective lens to the ocular lens
Virtual Image: The Image that is seen by your eye.
Magnification: The ration of the image size to the actual size; (ex: 100x=100 times bigger)
Resolution: Image clarity or sharpness
Total Magnification: Determined by multiplying the ocular lens x the objective lens: 10 x 40=400
Pictures of Various Types of Microscopes/Practice Diagrams/Answer Keys:
More Information about How to Use a Microscope:
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