5 Written questions
5 Matching questions
- From weeks six to 10-11.
- Vitelline duct
- Omphalocele, in that the herniated midgut did not return to the abdomen
- Microscopic view of the pectinate line. Area of irregular mucosal folding in anorectal canal.
- a What connects the primitive gut to the yolk sac?
What is this?
- c What is the major hematopoietic organ of the embryo?
- d During what weeks is the midgut herniated into the umbilicus?
What is happening here in this ultrasound?
5 Multiple choice questions
- What structures are derived from the allantois?
- How does the mesoderm contribute to the gut?
What is the cloacal membrane?
- What happens if the omphalomesenteric (vitelline) duct persists?
- What happens in the case of volvulus?
5 True/False questions
Imperforate anus, due to either a failure of the anal membrane to break down, or if the urorectal septum position is abnormal. →
Urachal cyst → If the lumen of the median umbilical ligament fails to obliterate, what kind of structures can you have?
Small bowel, proximal colon →
What is the middle circle, and what does it supply?
Urorectal septum, a wedge of mesoderm that will divide cloaca into rectum and bladder → What will divide the cloaca into what?
Neural crest cells
Meissner's plexus → What gives rise to the enteric ganglia, and what are the enteric ganglia?