A&P Lab 4

hold it by its arm and support the base

How do you carry a microscope?

under its dustcover

where do you keep a microscope?

rub with lens paper or a high-quality cotton swab

how do you clean a microscope

arm

on vertical side of the microscope, connects base and body; used to help carry the microscope

base

resets on flat surface and supports the microscope; used to help carry the microscope

coarse adjustment knob

used to get the image in focus under scanning or low-power objectives

condenser

concentrates and focuses the amount of light onto the microscope slide

diopter adjustment

adjusts focus of the eyepiece to compensate for vision differences between the two eyes

eyepieces (ocular lenses)

look through to make observations; magnified the image 10x

fine adjustment knob

fine-tuning the focus of the image under high-power objective

head (body)

located between the eyepiece and rotating nosepiece; provides support and path for light

illuminator (light) control

knob that regulates the brightness of light

illuminator (light) switch

turns on the light bulb

iris diaphragm lever

opens and closes the diaphragm, which adjusts the intensity of light entering the condenser; provides ability to control image contrast

mechanical stage

platform that holds the microscope slide

mechanical stage controls

knobs that move the microscope slide on the stage

objective lenses

scanning, low-power and high-power lenses that magnify the image of an object as it projects light upward into the head

rotating nosepiece

rotates objective lenses into position to achieve different magnifications

slide holder finger; stage clips

secures microscope slide onto the mechanical stage

substage illuminator

A lamp that allows light to enter the condenser, objective lens, and eyepiece

parfocal

When a specimen is in focus with a low-powered objective, it will be in focus when a high-power objective is rotated into position