<prompt> Meckel;s diveiculum is remnant ofThyroglossal tractMidgutUrachusVitelline duct  <response>: It is a congenital diveiculum arising from the terminal ileum and is pa of the unobliterated proximal poion of the vitello intestinal duct..Intestinal endof the vitelline duct may remain patent forming Meckels diveiculum, which may be attached to umbilicus with a fibrous band. Meckels diveiculum itself can cause diveiculitis, obstruction. ref:SRB;S manual of surgery,ed 3,pg no 798 