Cinnamon swirls or cinnamon buns?

I just realised - cinnamon swirls, cinnamon rolls and cinnamon buns must be the same thing!

Helsinki 2005. This Finnish bun was SERIOUSLY the size of my face!

Cinnamon buns/swirls being my absolute favorite sweet bakery product I just feel that it's weird I never knew this. 8-) I guess I just learned one translation, e.g. cinnamon bun and assumed the other were variants of sweet bread with cinnamon. Silly that, considering the whole thing being of Swedish descent.

If anyone can shed light on the truth of this matter, please do let me know! :-)
For now, I believe in the truth presented by Wikipedia: http://en.wikipedia.org/wiki/Cinnamon_swirl