Of course, the highlighted region on the left in the renderlayer tab is just a duplicate of what's highlighted in the 3d view. You sure you have the body in one of the highlighted layers in the 3d view?

Edited: -- Ack, of course it would be if it shows up in the 3d view. I've had similar things happen in the past but I can't remember everything that would cause this. If you posted the  .blend file it would be a lot easier to track down.