5 Written questions
5 Matching questions
- Meckel's diverticulum, due to abnormal persistence of the vitelline duct (omphalomesteric duct). This can be connected to the umbilicus via a fibrous cord.
- Superior mesenteric artery
- Tourneaux and Rathke folds
Tourneaux comes in from median, while Rathke come in from the sides.
The stalk that connects liverbud to duodenum becomes common bile duct.
- Annular pancreas
Duodenal obstruction, peptic ulcer disease, pancreatitis
What diseases is this process associated with?
- b The caudal and proximal parts of the hepatic diverticulum become what?
This is a section of midgut at the level of the ileum. What might this be, and what created this?
- d What folds are included in the urorectal septum?
- e What supplies the midgut?
5 Multiple choice questions
- What structures are derived from the foregut?
- What gut structures are derived from the endoderm?
- What sort of bowel distribution is there in a case of failure of gut rotation?
- What is an annular pancreas?
- When does insulin secretion begin?
5 True/False questions
Week 10, after the innervation of gut smooth muscle begins. → When do the liver, biliary, tree, pancreas arise from the ventral buds, and off of what?
Imperforate anus, due to either a failure of the anal membrane to break down, or if the urorectal septum position is abnormal. → What eventually happens to the cloacal membrane?
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?
Microscopic view of the pectinate line. Area of irregular mucosal folding in anorectal canal. →
What is this?
Celiac artery → What happens if the gut doesnt return to the abdomen?