Methods: 30 normal adult cadavers were selected and perfused red latan into arteries.Under stereomicroscope, jejunoileac entering arteries were observed and measured carefully.

• 方法：对30例正常成人尸体小肠标本动脉红色乳胶灌注并解剖剥离，体视显微镜下观察入壁动脉形态并测量其管径；