Auto body repair & detailing: dented 1994 corolla, toyota corolla, quarter panel

Question
on a 1994 toyota corolla the back quarte panel on the driver side is it all one piece that includes the roof or is it just a quarter panel?

Answer
It's just the quarter panel- the panel is grafted together in a hidden seam near the roof. Most cars look as if the roof and quarters are all one piece- they are not. They used to actually have lead seams, now they use laser welding and what appears to be brass filler. Pretty amazing stuff.