It's not it is in the middle of the thorax between the two lungs! Interestingly enough, it is actually in the middle in an area called the mediastinum. The reason that some people describe it as...
Yes.
This is a congenital condition called situs inversus (or situs transversus). In this condition, "everything works" but the visceral organs are all located "mirror image" to what is "normal" in...