19.The small intestine is infarcted. The dark red to grey infarcted bowel contrasts with the pale pink normal bowel at the bottom. Some organs such as bowel with anastomosing blood supplies, or liver with a dual blood suppy, are hard to infarct. This bowel was caught in a hernia and the mesenteric blood supply was constricted by the small opening to the hernia sac.

19.小肠梗死。图示暗红，灰白的肠梗死与底部淡粉红色的正常小肠对比。有吻合血液供应的肠，或双重血液供应的肝等器官很难发生梗死。本例为疝气患者，肠系膜血液供应被疝囊狭窄的开口阻断。