Flashcards in 2.3 GI Development Deck (22)
The primitive gut tube is suspended within the peritoneal cavity of the embryo by ...
Ventral and dorsal mesenteries
What does the ventral mesentery form?
Lesser omentum & falciform ligament
What 4 structures does the dorsal mesentery form?
Greater omentum, mesentery proper, transverse mesocolon, sigmoid mesocolon
What supplies the foregut?
Celiac trunk & vagus nerve
What does the foregut form? (6)
Esophagus, stomach, liver, gall bladder, pancreas, upper duodenum
The dorsal part of the stomach grows faster than the ventral part, resulting in ...
Greater and lesser curvatures of the stomach
The rotation of the stomach 90 degrees to the right causes the left vagus nerve to become the ...
Anterior Vagal Trunk
The rotation of the stomach 90 degrees to the right causes the right vagus nerve to become ...
Posterior Vagal Trunk
The left side of the peritoneal cavity is stretched to form the...
Greater peritoneal sac
Pancreas develops as two outgrowths of the foregut, they are called...
Dorsal and ventral pancreatic buds
What is the effect of gut rotation on the pancreatic buds?
Carries the ventral bud posterior to the dorsal bud and they fuse
The pancreas becomes ... Due to gastric and duodenal rotation and return of midgut to the abdomen from the amniotic cavity
Which pancreatic bud becomes the head of the pancreas and most of the main pancreatic duct?
Ventral and dorsal pancreatic buds usually anastomoses to form the...
Main pancreatic duct
What supplies the midgut?
SMA & vagus nerve
The midgut forms what 6 organs?
Lower duodenum, small intestine, cecum, vermiform appendix, ascending colon & transverse colon
The U shaped loop of the midgut rotates 270 degrees around what?
What portion of the intestines is the first portion to re-enter the peritoneal cavity and comes to lie on the left side?
The cecum is the last part of the gut to return and initially lies where?
RUQ under the liver
What supplies the hindgut?
IMA & pelvic splanchnic nerves (S2-S4)
The hindgut forms what 4 structures?
Descending colon, sigmoid colon, rectum, & upper anal canal