Could Atlantis have been Mu?

In the Top 10 Theories about the Lost City of Atlantis article on the Top Tenz website referred to in my last two blogs, there is also references to another mysterious lost continent named Mu. An excerpt from the above article says:

Mu is the name of a hypothetical continent that allegedly existed in either the Atlantic or Pacific Ocean, depending on who you listen to. In either case, it was thought to have disappeared at the dawn of human history, its survivors emigrating to other continents to serve as the foundation for a number of later civilizations throughout the world.