Figure 13.26 Umbilical herniation of the intestinal loops in an embryo of approximately 8 weeks (crown-rump length, 35 mm). Coiling of the small intestinal loops and formation of the cecum occur during the herniation. The first 90° of rotation occurs during herniation; the remaining 180° occurs during the return of the gut to the
(continues on page 307)
part of the ileum. The caudal limb becomes the lower portion of the ileum, the cecum, the appendix, the ascending colon, and the proximal two-thirds of the transverse colon.
Was this article helpful?