has part has part has_part characteristic of has modifier abnormal foregut morphology absent foregut csmith absence of the anterior portion of the primitive digestive tube of the embryo that lies cephalic to the junction of the yolk stalk, consists of endodermal tissue, and gives rise to the pharynx, lower respiratory system, esophagus, stomach, duodenum proximal to the biliary tract, liver, pancreas, biliary tract, and gall bladder MPheno.ontology missing foregut 2013-09-13T09:54:53Z foregut agenesis MP:0012083 abnormal absent foregut