| A | B |
| base | what the microscope rests on |
| light source | provides light to the specimen |
| stage | platform upon which to mount the slide |
| arm | holds the tube and stage and attaches them to the base |
| fine adjustment | used for final focusing |
| coarse adjustment | used for first focusing |
| eyepiece | what you look through; also called ocular lens |
| body tube | holds eyepiece lens at the top and the objective lens at the bottom |
| nosepiece | rotating piece that holds the objective lens |
| high powered objective | allows for the highest magnification |
| low powered objective | allows for the lowest magnification |
| medium powered objects | allows for medium magnification |
| clip | holds the slide in place |
| diaphragm | regulates the amount of light |