#DISSECTING MICROSCOPE PARTS HOW TO#
#DISSECTING MICROSCOPE PARTS TV#

MICROSCOPE PART Coarse focus knob Fine focus knob Mechanical stage Stage Iris diaphragm Ocular lens Objective lens Condenser lens Revolving nosepiece Illuminator Arm Condenser lensД®xercise #1 Identifying and describing parts of a light microscope. In addition to giving you training in proper microscope usage, this exercise will provide an opportunity to practice using a microscope. In this lab you will learn the correct terminology and techniques needed for efficient utilization of the light microscope. During the course of this semester, we will be examining organisms and parts of organisms that will require the use of the microscope. Introduction: Biological study includes the microscopic examination of many organisms. List the purposes of a dissecting microscope and recognize situations in which a compound microscope is preferred over a dissecting microscope and vice versa. Understand and be able to name the differences between a compound and a dissecting microscope. Be able to properly clean a microscope and keep it in good working order. Be able to determine the compounded magnification of a set of lenses, given the magnification of each separate lens. Be able to determine the approximate size of an object under low power or high power using the ocular micrometer. Be able-when given a slide, coverslip, and specimen-to construct a temporary wet mount and focus on the specimen in the center of the field of view, using high power. Be able to properly adjust the microscope for proper contrast using three different types of adjustment. Define the function of the following terms in microscopy Be able to identify and use the following parts of the microscope correctly: Study the diagram of both microscopes and familiarize yourself with the labeled parts, see if you can name them using the terms given in Objective #1 below. Read through this entire exercise and make sure you understand what will be happening in lab. Pre-lab Preparation: You should complete the following activities before coming to lab. Dispose of broken glass or organic materials as indicated by the instructor. Paper towels may be used to clean slides ONLY. Carefully clean slides before you use them, because dust or fingerprints will interfere with your ability to see a specimen. Be careful not to cut yourself when using them. Wipe them clean with a piece of lens tissue ONLY.

Try not to get the lenses wet during microscope use.

DO NOT simply trade the defective scope for a new one.

Always replace the microscope to the properly numbered shelf in the microscope cabinet.

Do not remove parts of the microscope unless directed to do so by Dr.

This could break the mechanism of the mechanical stage. When slides stick the mechanical stage will not be able to move the slide around during viewing.

Keep the stage clean and dry to prevent slides from sticking to the stage.

The lowest power objective should be in place at both the beginning and end of use.

Do not use wet paper, paper towels, or other materials that may scratch these lenses.

Use only clean, dry lens paper to clean dust off of the glass lenses.

Always hold it upright so that the ocular lens does not slip out.

Use both hands to carry the microscope.

Follow these simple rules and you can protect your microscope. The Lab Rules for microscope use Microscopes are very expensive to replace therefore, be particularly careful when handling.

#DISSECTING MICROSCOPE PARTS TV#

7) To introduce you to some current technology available for projecting microscope images through a TV or data projector. 6) To demonstrate safety practices for microscope use. 5) To assure that you feel comfortable using microscopes in your classroom.

#DISSECTING MICROSCOPE PARTS HOW TO#

3) To teach you how to properly adjust a microscope for contrast and brightness 4) To give you experience in calibrating a microscope and then measuring objects under the microscope. The purposes of this lab are: 1) To familiarize you with different types of microscopes 2) To give you practice in finding live organisms and prepared organisms on the microscope. There have been a few, but not many modifications in this version I have given you. Microscope Activity On the following pages you will find a copy of a microscope lab I do with my Bio 100 honors students.

Dissecting microscope parts