The Compound Microscope

This is a compound microscope. As you see in the diagram it has 9 main parts and the base. The names of those parts are: 1)Eyepiece, 2)Arm, 3)Fine Focus Knob, 4)Coarse Focus Knob, 5)Objective Lenses, 6) Stage, 7)Diaphragm, 8)Light, 9)Aperture and of course the base on which it stands.