Which organ is not use in our body Share with your friends Share 0 Bushra Anwaar answered this Vestigial organs is not use in our body 0 View Full Answer Antara Mahata answered this It may be apendix present below the asending colon(large intestine).Long time ago when human being eat cellulose (present in grass)directly in its compound form then apendix help to digest cellulose . 0