| A | B |
| eyepiece | ocular lens at the top of the body tube |
| body tube | the tall tube between the eyepiece & the objective lenses |
| stage | the surface underneath the objective lenses |
| stage clips | clips that hold the slide in position |
| objective lenses | lenses of different magnification to better see an object |
| nosepiece | rotating disc between the body tube and the objective lenses |
| base | heavy bottom of the microscope |
| arm | support for the body tube to be held when carrying microscope |
| diaphragm | disc with several different sized holes between the stage and the light |
| light | mounted on the base under the diaphragm |