{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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 • meckel’s diverticulum – persistent yolk sac remnant...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online