Gastrointestinal (USMLE First Aid) Questions and Correct Detailed Answers (Verified Answers) ||Already Graded A+||Newest Version

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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, 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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