anatomy lab

Topics: Lens, Eyepiece, Focal length Pages: 4 (1623 words) Published: October 17, 2013

Lab Title: Microscopy
Objective: To learn how to use and care for a microscope and to know the parts of a compound microscope and to efficiently use the microscope to focus on specimen. Introduction
A microscope is an optical instrument used for viewing very small objects, typically magnified several hundred times. It consist of different lenses such as: Scanning = 4X, Low power = 10X, High power = 40 or 43X, Oil Immersion = 100X. A microscope is an instrument to see objects too small for the naked eye. It’s a device used for magnifying small entities which cannot be seen by the eyes without any additional aid, it uses combination of magnifying lenses with a rotator that can be used to adjust the item view option. It is made out of glass that is magnified, and in the olden days, when microscopes were first made, they were handmade. The main purpose of a microscope is magnifying samples and examining them in detail. A microscope also determines whether a group of cells is cancerous and finds out more information about the structure of bacteria and viruses. On a microscope, a diaphragm, also known as an iris, is a revolving disk under the stage that can be adjusted to allow more or less light. It is typically a plastic disk located between the light source and the specimen mount. The compound microscope has two systems of lenses for greater magnification, 1) the ocular or eyepiece lens that one looks into and 2) the objective lens, or the lens closest to the object. A microscope works by using lights, mirrors, and glass to magnify. The mirrors and glass bend the light in a certain way that it makes small objects appear larger. Method

Procedure 1.2 Handling and manipulating the microscope
The microscope was placed securely on the bench with the power cord connected and the objective lenses and stage facing towards me. The stage was placed in its lowest position and the 4X lens in place. The microscope light was then turned...


References: Read more: Why Do Compound Microscopes Invert the Images? | eHow.com http://www.ehow.com/how-does_5208588_do-compound-microscopes-invert-images_.html#ixzz272EqusrZ
Read more: How to Care for Microscopes | eHow.com http://www.ehow.com/how_5792008_care-microscopes.html#ixzz272HrMngj
(Lawrence, 2005)
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