midgut loop

midgut loop

a U-shaped loop of intestine that temporarily forms during the period of rapid elongation and rotation of the midgut in embryonic development. It projects into the proximal part of the umbilical cord, to which it is attached via the yolk stalk. With further development, it retracts into the abdomen, rotating further.

mid·gut loop

(mid'-gut lūp)
The U-shaped part of the embryonic midgut that herniates into the extraembryonic celom in the proximal part of the umbilical cord when the embryonic celom (primordial abdominal cavity) temporarily becomes too small to contain the intestinal loops.
Synonym(s): umbilical intestinal loop.
References in periodicals archive ?
At about 10 weeks of gestation, the intestine derived from midgut loop returns back.