Shape of Duodenum in Human's Small Intestine - 'U' or 'C' ? --Fast Please Share with your friends Share 1 Rukshana answered this It is C-shaped 0 View Full Answer mujtabanabi7... answered this Answer is C 0 Bhavana Vihaan answered this but in NCERT they gave it has 'U' --- Confused a lot 0 Preeti answered this 'c' 0 Jasveen answered this In NCERT book the shape of duodenum in humans small intestine is C shape but in other books the shape of duodenum in humans small intestine is u shape 0 Mayla Khan answered this We can say both u nd c 1