~Teachingcenter的醫學筆記~

構造

器官

Foregut
(Celiac trunk)

Esophagus, lower respiratory tract, stomach, duodenum (up to ampulla of vater), liver, gallbladder, pancreas, spleen (脾臟來自mesodermal dorsal mesentery，而前腸源自endoderm，然脾臟的血流供應是由前腸而來)

Midgut
(Superior mesenteric a.)

Duodenum (2^nd to 4^th portion), jejunum, ileum, cecum, appendix, ascending colon, hepatic flexure of colon, transverse colon (proximal 2/3)

Hindgut
(Inferior mesenteric a.)

Transverse colon (distal 1/3), splenic flexure of colon, descending colon, sigmoid colon, rectum, anal canal

Duodenal bud

(資料少)主要形成十二指腸，可能還有dorsal pancreatic bud

Cephalic bud

Right and left lobe of liver

Caudal bud

Biliary tract and gallbladder