Chapter 5: Gastrointestinal

Question 1

Esophagus, stomach and duodenum up to major duodenal papilla

Answer 1

Foregut derivatives

Question 2

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

Answer 2

Midgut derivatives

Question 3

Rest of the large bowel to the upper half of the anal canal

Answer 3

Hindgut derivatives

Question 4

2 curves, 2 sphincters, 2 omenta, 2 types of cells: chief and parietal

Answer 4

Stomach features

Question 5

Outer-longitudinal, inner-circular, innermost-oblique

Answer 5

Layers of stomach muscles

Question 6

1st-superior, 2nd-descending, 3rd-horizontal, 4th-ascending

Answer 6

Parts of the duodenum

Question 7

Thicker, wider and more vascular, with large vascular arcades

Answer 7

Jejunal features

Question 8

Thinner, narrower and less vascular, with less vascular arcades

Answer 8

Ileal features

Question 9

Haustrations, teniae coli and appendices epiploica

Answer 9

Large bowel features

Question 10

Endodermal origin, supplied by inferior mesenteric artery branch

Answer 10

Upper half of anal canal

Question 11

Ectodermal in origin, supplied by an internal pudendal artery branch

Answer 11

Lower half of anal canal

Question 12

Major duodenal papilla, ampula of Vater surrounded by Oddi sphincter

Answer 12

Foregut-Midgut junction

Question 13

Proximal 2/3 and distal 1/3 of the transverse colon

Answer 13

Midgut-hindgut junction