I began to make my way through the tunnel (duodenum) when suddenly two different liquids shot up at me (bile, enzymes). I wondered where it all had come from (liver, gall bladder, pancreas). As I continued along I floated through some weird finger like things that lined the tunnel (villi). I moved along until I encountered another hole. Maybe this was the way out. Unfortunately I found myself in yet another tunnel, although this one was larger (large intestine). I traveled along this tunnel for a while but not quite as long.