胃及十二指肠溃疡急性穿孔 十二指肠的解剖 Musculature of Duodenum Outer longitudnal musole lager Layers of Wall Duodenum in Situ [with window cut] Inner circulat muscle layer [vith window cut] with duodenal (Brunner's) glands胃及十二指肠溃疡急性穿孔 十二指肠的解剖