microscope![click to hear](/images/speaker.jpg)
Optical instrument that consists of a system of lenses designed for observing organisms that are very small or invisible to the naked eye by magnifying their images.
coarse adjustment knob ![click to hear](/images/speaker.jpg)
Medium-precision focusing device for adjusting the distance between the objective and the object under study.
fine adjustment knob ![click to hear](/images/speaker.jpg)
High-precision focusing device for adjusting the distance between the objective and the object under study.
arm ![click to hear](/images/speaker.jpg)
Vertical part of the microscope that supports the components (draw tube, stage) and contains the focusing mechanisms.
base ![click to hear](/images/speaker.jpg)
Support that stabilizes the microscope.
mirror ![click to hear](/images/speaker.jpg)
Polished glass surface that reflects the surrounding light onto the object under study to illuminate it.
condenser ![click to hear](/images/speaker.jpg)
Optical system that is usually made up of two lenses, which concentrate the light reflected by the mirror onto the object under study.
stage ![click to hear](/images/speaker.jpg)
Metal plate with an opening in the middle; the glass slide and the components keeping it in place are placed on it.
glass slide ![click to hear](/images/speaker.jpg)
Fine glass plate on which the object to be studied is placed.
stage clip ![click to hear](/images/speaker.jpg)
Springlike metal blade that keeps the glass slide on the stage.
objective ![click to hear](/images/speaker.jpg)
Lens system that captures the light from an observed object and makes it converge to form an enlarged inverted image.
revolving nosepiece ![click to hear](/images/speaker.jpg)
Rotating plate to which objectives of different powers are fixed to allow them to be used in succession during a study.
draw tube ![click to hear](/images/speaker.jpg)
Cylindrical tube that houses the microscope’s eyepiece; it is often made up of two converging lenses.
eyepiece ![click to hear](/images/speaker.jpg)
System of lenses that acts as a magnifier; the eye looks through it to see an enlarged image of the image produced by the objective.