Yes. Over the Christmas break, my cousin told me this fun fact. It's called Chimera. And I've validated the information on the interwebs. Here is one article about Dr. Starzl, the guy who made human organ transplantation a reality: TRANSPLANTATION IMMUNOLOGY Discovery of Microchimerism. And, there's a Wikipedia article about chimera. HOW COOL IS THAT?
The Derek Janiak Hepatobiliary Forum
The liver is the largest internal organ in humans and the only one that will grow back if part of it is removed. It is responsible for over 500 different functions in collaboration with other organs. Pfft. Overachiever.
The Derek Janiak Hepatobiliary Forum 