Midgut - twisted appearance of the mesenteries caecum and...

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Midgut Structures: 3 rd and 4 th parts of the duodenum jejunum, ileum caecum, appendix ascending colon proximal 2/3 transverse colon Physiological herniation’ (normal process) Midgut grows faster than the abdominal cavity so that in the 6 th week, it protrudes through the abdominal wall into the proximal part of the umbilical cord, alongside the umbilical vessels Week 10 – return to the abdominal cavity and undergoes further rotation Jejunum and ileum are first to go back and the caecum the last. rotations account for the positions of the small and large intestines and the
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Unformatted text preview: twisted appearance of the mesenteries caecum and transverse colon remain suspended by dorsal mesentery ascending colon fuses with the posterior abdominal wall Congenital Abnormalities: rotational e.g. abnormal positioning of derivatives e.g. appendix on the left umbilical hernia abnormally large opening between umbilical cord and abdominal cavity meckels diverticulum persistent yolk sac remnant...
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This note was uploaded on 11/22/2011 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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