Part 1: Microscopy Parts & Function

Question 1

Revolving Nosepiece

Answer 1

rotating part that holds the objectives

Question 2

Oil Immersion Objective (OIO)

Answer 2

magnifies the image 100 times. It is used with a special oil that increases the resolution of the image by reducing light refraction.

Question 3

Mirror

Answer 3

reflective surface that collects lights and directs it upward through the condenser

Question 4

Coarse Adjustment Knob

Answer 4

larger knob used for making large adjustments to the focus, particularly when using the low-power objective.

Question 5

Stage

Answer 5

the flat platform where the glass slide is placed.

Question 6

Iris Diaphragm

Answer 6

controls the amount of light passing through the condenser. It helps to improve the contrast and resolution of the image.

Question 7

Arm

Answer 7

it connects the body tube to the base.

Question 8

High Power Objective (HPO)

Answer 8

magnifies the image 40 to 45 times. used for observing the finer details of the specimen.

Question 9

Stage Clip

Answer 9

metal clips on the stage that hold the slide securely.

Question 10

Fine Adjustment Knob

Answer 10

focus finer detail of the object, provides a sharper image by making small adjustments.

Question 11

Pillar

Answer 11

the vertical part that connects the base to the rest of the microscope.

Question 12

Low Power Objective (LPO)

Answer 12

magnifies the image 10 times. It is used for scanning and viewing larger areas of the specimen.

Question 13

Inclination Joint

Answer 13

a hinge that allows the upper part of the microscope to be tilted for more comfortable viewing.

Question 14

Base

Answer 14

bottom support of the microscope. It stabilizes the entire instrument.

Question 15

Draw Tube

Answer 15

cylinder part where eyepiece is inserted, it ensures proper distance between eyepiece and objectives.

Question 16

Ocular Eyepiece

Answer 16

a lens at the top of the microscope that you look through. It usually magnifies the image 5 to 10 times

Question 17

Body Tube

Answer 17

long tube that connects the eyepiece to the objectives, it maintains the correct distance between the lenses to ensure proper magnification.

Question 18

Pinion Rack

Answer 18

connects the arm and the body tube

Question 19

Dust Shield

Answer 19

to keep dust from settling o the objectives

Question 20

Central Aperture

Answer 20

a hole in the stage via which transmitted light from the source enters the stage.

Question 21

Abbe Condenser

Answer 21

concentrates and controls the light that passes through the specimen prior to entering the objective.

Question 22

Abbe Condenser Knob

Answer 22

moves the abbe condenser up and down to control the lighting focus.