stomach epithelium,thyroid primordium,pyloric sphincter,lung bud,lung,oral evagination,buccopharyngeal membrane,first pancreatic bud,ventral pancreatic bud,second pancreatic bud,pharyngeal cavity,lung primordium,pancreas,stomach,islets of Langerhans,thyroid,taste bud,visceral pouch,stomach body,delta cell,antrum,exocrine pancreas,fundus,pyloric sphincter,islets of Langerhans,gamma cell,pylorus,pulmonary epithelium,acinar cell,distal stomach,cardia,epsilon cell,beta cell,alpha cell,proximal stomach