part of part_of develops from foregut 前肠 digestive tract 消化道 duodenum 十二指肠 pancreas primordium 胰腺原基 pancreatic epithelial bud 胰腺上皮芽 The embryonic pancreas develops from two separate anlagen in the foregut epithelium, one dorsal and two ventral pancreatic buds[PMID]. pancreas epithelium pancreatic anlage pancreatic bud pancreatic buds 胚胎胰腺从前肠上皮中的两个独立的原始细胞，一个背侧和两个腹侧胰芽发育而来[PMID]。 胰腺上皮 胰腺原基 胰芽(pancreatic bud) 胰芽(pancreatic buds) embryonic tissue 胚胎组织 endo-epithelium 内切上皮 epithelial sac 上皮囊 epithelium of foregut-midgut junction 前肠-中肠交界处上皮 digestive tract 消化道