Gastrointestinal (USMLE First Aid) Questions and
Correct Detailed Answers (Verified Answers)
||Already Graded A+||Newest Version
Quiz: esophagus to upper duodenum, includes liver, gallbladder, pancreas, spleen
Ans: foregut (definition)
Quiz:lower duodenum to proximal 2/3 of transverse colon
Ans: Midgut (definition)
Quiz:distal 1/3 of transverse colon to anal canal
Ans: Hindgut (definition)
Quiz:physiologic midgut herniates through umbilical ring
Ans: 6th week of GI development major events
Quiz:midgut returns to abdominal cavity, rotates around SMA, 270 degrees
counterclockwise
Ans: 10th week of GI development major events
Quiz:sternal defects (ectopia cordis)
Ans: if the rostral fold fails to close, what does this cause? (embryology)
Quiz:omphalocele, gastroschisis
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, Ans: if the lateral fold fails to close, what does this cause? (embryology)
Quiz:bladder exstrophy
Ans: if the caudal fold fails to close, what does this cause? (embryology)
Quiz:abd contents extrude through abd folds, not covered by peritoneum
Ans: Gastroschisis pathogenesis (embryology)
Quiz:abd contents herniate into umbilical cord, sealed by peritoneum
Ans: Omphalocele pathogenesis (embryology)
Quiz:incomplete umbilical ring closure, may close spontaneously
Ans: congenital umbilical hernia pathogenesis (embryology)
Quiz:esophageal atresia w/ distal tracheoesophageal fistula
Ans: most common type of tracheoesophageal anomaly (embryology)
Quiz:polyhydramnios
Ans: esophageal atresia w/ distal tracheoesophageal fistula in utero effects (embryology)
Quiz:drooling, choking, vomit with first feeding, air in stomach on CXR, cyanosis due to
laryngospasm
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, Ans: esophageal atresia w/ distal tracheoesophageal fistula clinical presentation
(embryology)
Quiz:palpable olive shaped mass in epigastrium, visible peristalsis, nonbilious projectile
vomiting
Ans: hypertrophic pyloric stenosis clinical presentation (embryology)
Quiz:firstborn males, macrolide exposure
Ans: hypertrophic pyloric stenosis risk factors (embryology)
Quiz:hypokalemic, hypochloremic metabolic alkalosis
Ans: hypertrophic pyloric stenosis complications (embryology)
Quiz:foregut
Ans: what gut division is the pancreas derived from? (embryology)
Quiz:body, tail, isthmus, accessory pancreatic duct
Ans: what pancreatic structures does the dorsal pancreatic bud give rise to? (embryology)
Quiz:uncinate process, main pancreatic duct
Ans: what pancreatic structures does the ventral pancreatic bud give rise to?
(embryology)
Quiz:accessory pancreatic duct
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in the number given.
, Ans: identify the structure (embryology)
Quiz:dorsal pancreatic bud
Ans: identify the structure (embryology)
Quiz:pancreatic duct
Ans: identify the structure (embryology)
Quiz:uncinate process
Ans: identify the structure (embryology)
Quiz:ventral pancreatic bud
Ans: identify the structure (embryology)
Quiz:ventral pancreatic bud encircles 2nd part of duodenum, forms ring, may cause
duodenal narrowing, vomiting
Ans: Annular pancreas pathogenesis (embryology)
Quiz:duodenal narrowing, annular pancreas
Ans: identify the clinical finding and underlying pathology
Quiz:ventral/dorsal buds fail to fuse at 8 weeks
Ans: pancrease divisum pathogenesis (embryology)
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in the number given.
Correct Detailed Answers (Verified Answers)
||Already Graded A+||Newest Version
Quiz: esophagus to upper duodenum, includes liver, gallbladder, pancreas, spleen
Ans: foregut (definition)
Quiz:lower duodenum to proximal 2/3 of transverse colon
Ans: Midgut (definition)
Quiz:distal 1/3 of transverse colon to anal canal
Ans: Hindgut (definition)
Quiz:physiologic midgut herniates through umbilical ring
Ans: 6th week of GI development major events
Quiz:midgut returns to abdominal cavity, rotates around SMA, 270 degrees
counterclockwise
Ans: 10th week of GI development major events
Quiz:sternal defects (ectopia cordis)
Ans: if the rostral fold fails to close, what does this cause? (embryology)
Quiz:omphalocele, gastroschisis
o
o
© 2025 TestTrackers
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in the number given.
, Ans: if the lateral fold fails to close, what does this cause? (embryology)
Quiz:bladder exstrophy
Ans: if the caudal fold fails to close, what does this cause? (embryology)
Quiz:abd contents extrude through abd folds, not covered by peritoneum
Ans: Gastroschisis pathogenesis (embryology)
Quiz:abd contents herniate into umbilical cord, sealed by peritoneum
Ans: Omphalocele pathogenesis (embryology)
Quiz:incomplete umbilical ring closure, may close spontaneously
Ans: congenital umbilical hernia pathogenesis (embryology)
Quiz:esophageal atresia w/ distal tracheoesophageal fistula
Ans: most common type of tracheoesophageal anomaly (embryology)
Quiz:polyhydramnios
Ans: esophageal atresia w/ distal tracheoesophageal fistula in utero effects (embryology)
Quiz:drooling, choking, vomit with first feeding, air in stomach on CXR, cyanosis due to
laryngospasm
o
o
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in the number given.
, Ans: esophageal atresia w/ distal tracheoesophageal fistula clinical presentation
(embryology)
Quiz:palpable olive shaped mass in epigastrium, visible peristalsis, nonbilious projectile
vomiting
Ans: hypertrophic pyloric stenosis clinical presentation (embryology)
Quiz:firstborn males, macrolide exposure
Ans: hypertrophic pyloric stenosis risk factors (embryology)
Quiz:hypokalemic, hypochloremic metabolic alkalosis
Ans: hypertrophic pyloric stenosis complications (embryology)
Quiz:foregut
Ans: what gut division is the pancreas derived from? (embryology)
Quiz:body, tail, isthmus, accessory pancreatic duct
Ans: what pancreatic structures does the dorsal pancreatic bud give rise to? (embryology)
Quiz:uncinate process, main pancreatic duct
Ans: what pancreatic structures does the ventral pancreatic bud give rise to?
(embryology)
Quiz:accessory pancreatic duct
o
o
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in the number given.
, Ans: identify the structure (embryology)
Quiz:dorsal pancreatic bud
Ans: identify the structure (embryology)
Quiz:pancreatic duct
Ans: identify the structure (embryology)
Quiz:uncinate process
Ans: identify the structure (embryology)
Quiz:ventral pancreatic bud
Ans: identify the structure (embryology)
Quiz:ventral pancreatic bud encircles 2nd part of duodenum, forms ring, may cause
duodenal narrowing, vomiting
Ans: Annular pancreas pathogenesis (embryology)
Quiz:duodenal narrowing, annular pancreas
Ans: identify the clinical finding and underlying pathology
Quiz:ventral/dorsal buds fail to fuse at 8 weeks
Ans: pancrease divisum pathogenesis (embryology)
o
o
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in the number given.
