English: Diagram showing the normal process by which the intestine "rotates" and herniates during development

From original summary: "Graphical summary of the “en-bloc rotation” and our hierarchical model of gut morphogenesis. Panels a-c show the classic “en-bloc rotation” model of gut morphogenesis. From panel a to b (left-sided views) the midgut loop rotates 90° in a counterclockwise direction, so that its position changes from midsagittal (a) to transverse (b1). The small intestine forms loops (b2) and slides back into the abdomen (b3) during resolution of the hernia. Meanwhile, the cecum moves from the left to the right side, which represents the additional 180° counterclockwise rotation of the intestine (c, ventral view)."