1. This part controls the amount of light passing through to the slide.
a. objective lenses
c. diaphragm
d. ocular lens
b. stage
2. Part that you look through, also called the eyepiece.
a. ocular lens
c. objective lenses
b. light source
d. diaphragm
3. Used to focus the image.
a. course adjustment knob
b. fine adjustment knob
c. eyepiece
d. arm
4. Used to bring the specimen into view, but never used on high magnification.
a. base
c. course adjustment knob
b. condenser
d. fine adjustment knob
5. The part that turns and holds the objective lenses.
a. body tube
c. arm
d. nose piece
b. stage​