The following pictures are of the camera casing. The purpose of the casing is to protect the inner parts of the camera and to keep light from reaching the film(located inside the camera).
The next part is the lens. What the lens does is that it bends the entering light and this created the image.
The next photo is the circuit. The circuit board creates the light from the flash. On the top of the board you will see the flash. The flash adds the light to the photo.
Next is the film. Reflected light enters through the lens and hits the emulsion, this causes the recording an image. In the picture shown the film is rolled up.
The final picture is of all the parts.