1. During fetal development, abnormal openings may occur in the pericecal, small bowel, transverse colon, or sigmoid mesentery, as well as the omentum, leading to mesenteric hernias.
   在胎儿发育阶段，这种异常的裂隙可能发生在盲肠旁、小肠、横结肠或乙状结肠和网膜，造成肠系膜疝。
2. The inferior ileocecal recess is bounded in front by the ileocecal fold, above by the posterior ileal surface and its mesentery, to the right by the cecum, and behind by the upper mesoappendix (22).
   回盲下隐窝在回盲襞前方和回肠后表面及其系膜的下方，盲肠右侧，阑尾上系膜的后方。

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