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Flashcards in GI - First Aid Deck (472)
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1

The foregut is the...

pharynx to the duodenum.

2

The midgut is the...

duodenum to the proximal 2/3 of the transverse colon.

3

The hindgut is the...

distal 1/3 of the transverse colon to the anal canal above the pectinate line.

4

Failure of rostral fold closure causes...

stenral defects.

5

Failure of lateral fold closure causes...

ompholocele and gastroschisis.

6

Failure of caudal fold closure causes...

bladder exstrophy.

7

Duodenal atresia is due to...

failure to recanalize. (associated with trisomy 21)

8

Jejunal, ileal, and colonic atresia is due to...

vascular accident. (apple peel atresia)

9

During the 6th wk, the midgut will...

herniate through the umbilical ring.

10

During the 10th wk, the midgut will...

return to the abdominal cavity and rotate around the SMA.

11

Gastroschisis

extrusion of abdominal contents through abdominal folds; not covered by peritoneum

12

Ompholcele

persistence of herniation of abdominal contents into umbilical cord; sealed by peritoneum

13

The most common tracheoesophageal anomaly is...

esophageal atresia with distal tracheoesophageal fistula. (EA w/ TEF)

14

EA w/ TEF results in...

drooling, choking and vomiting with the first feed.

15

TEF allows...

air to enter the stomach (visible on CXR).

16

Cyanosis is seen in EA w/ TEF secondary to...

laryngospasm (to avoid reflux-related aspiration).

17

Clinical test for EA w/ TEF

failure to pas NG tube into stomach

18

In H-type tracheoesophageal anomaly, it is...

a fistual alone (no atresia).

19

In pure atresia (no TEF), the CXR shows...

gasless abdomen.

20

Congenital pyloric stenosis is when...

hypertrophy of the pylorus causes obstruction.

21

Features of congenital pyloric stenosis

-palpable "olive" mass in epigastric region -nonbilious projectile vomiting at 2-6 wks old (common in firstborn males)

22

Treatment for congenital pyloric stenosis

surgical incision

23

The pancreas is derived from the...

foregut.

24

Ventral pancreatic buds contribute to...

the pancreatic head and main pancreatic duct.

25

The uncinate process is formed by..

the ventral bud alone.

26

The dorsal pancreatic duct becomes...

everything else (body, tail, isthmus and accesory duct).

27

Annular pancreas

ventral pancreatic bud abnormally encircles the 2nd part of the duodenum and forms a ring of pancreatic tissue that may cause duodenal narrowing

28

Pancreas divisum

ventral and dorsal parts fail to fuse at 8 wks

29

The spleen arises in...

the mesentery of the stomach (hence, mesodermal) but is supplied by the foregut (celiac artery).

30

Retroperitoneal structures include GI structures that...

lack a mesentery and non-GI structures.