Home life A teacher asked her 6th grade: “Who can tell me, which human organ becomes 10 times bigger when it’s stimulated?” A teacher asked her 6th grade: “Who can tell me, which human organ becomes 10 times bigger when it’s stimulated?” shenal April 08, 2016 Share: Facebook Twitter Google+ Pinterest Whatsapp She only needed to answer one question. But the resentful student didn't expect this reply. Source: