5 Written Questions
5 Matching Questions
- Primordial pharynx
Liver, biliary tree
- At week six, midgut herniates in U-shaped "primary intestinal loop" into the cord.
- Like a napkin ring of pancreas surrounding the duodenum.
Result of bilobed ventral buds that rotate dorsally on both sides of duodenum and fuse with dorsal bud
Can cause duodenal obstruction, pancreatitis, peptic ulcer.
- Superior mesenteric artery
- This is unclear.
- a Why does the gut return to the abdomen?
- b What structures are derived from the foregut?
- c When does the midgut undergo herniation?
- d What supplies the midgut?
- e What is an annular pancreas?
5 Multiple Choice Questions
What is this?
- What happens if the omphalomesenteric (vitelline) duct persists?
- What are some complications of a failure of the urachus lumen to obliterate?
What diseases is this process associated with?
- Where in the gut does a Meckel's diverticulum occur?
5 True/False Questions
Omphalocele in a term baby → What supplies the foregut?
4th week, off of the caudal foregut endoderm. → When does insulin secretion begin?
Upper part of the head
Contributes to the accessory duct (of Santorini) →
Dorsal bud of the pancreas gives rise to what structures of the pancreas?
Undifferentiated endodermal cells proliferate and occlude gut lumen
Then it recanalizes over the next 2 weeks
Definitive mucosal epithelium differentiates by week 9. → What happens to gut development at week 6?
Removes last bit of extra water
Stores residual stool until convenient to discharge
Prevents bacterial and parasitic invasion. → Why is the colon important?