Shared Flashcard Set

Details

Microscope
Microscope Parts and Functions
13
Biology
Undergraduate 2
09/08/2013

Additional Biology Flashcards

 


 

Cards

Term
Arm
Definition
Used to carry the microscope; located between the body tube and the base
Term
Base
Definition
Supports the microscope; used to carry the microscope
Term
Body tube (Head)
Definition
Supports the objective lens system and the ocular lens; directs light toward the ocular lens
Term
Coarse focus (adjustment)
Definition
Brings the specimen into focus by raising or lowering the stage; never use the coarse focus on high power!
Term
Condenser
Definition
Substage lens that concentrates light on the specimen; the condenser control knob will raise and lower the condenser to vary the light; the best position for the condenser is just below the opening in the stage
Term
Fine focus (adjustment)
Definition
Used for final focusing (fine-tuning the image)
Term
Iris diaphragm
Definition
Regulates the amount of light that passes through the stage; located at the base of the condenser
Term
Objective lenses
Definition
Magnify the specimen for viewing; scanning lens (red ring)
magnifies 4X, low power lens (yellow ring) magnifies 10X, high power lens (blue ring) magnifies 40X, oil immersion lens (white ring) magnifies 100X
Term
Ocular lens (eyepiece)
Definition
The lens (or lenses) you look through; magnifies the specimen 10X; monocular microscopes have one ocular
lens, binocular microscopes have two ocular lens
Term
Revolving nosepiece
Definition
Contains the objective lenses; use nosepiece to rotate the correct objective lens into place over the opening in the stage
Term
Stage
Definition
Flat platform where the slide is placed for viewing
Term
Stage clips
Definition
Hold the slide in place; two knobs below the stage control the precise movement of the specimen on a mechanical stage
Term
Substage light
Definition
Light source; a light dimmer dial on the base varies the intensity of the light source
Supporting users have an ad free experience!