Gut Developmental Peritoneum Flashcards
everything in the abdominal cavity comes from the
embryonic gut tube
spleen
lymphoid organ
why do we talk about the spleen with the GI tract?
it gets its blood supply from the GI system
what sections is the gut tube divided into?
three segments, foregut, midgut, hindgut
innervation and blood supply to these gut sections is strongly
patterned
foregut from proximal to distal (6)
esophagus stomach & 1/2 duodenum liver gall bladder pancreas spleen
midgut from proximal to distal (6)
1/2 duodenum jejunum ileum cecum & appendix ascending colon 2/3 transverse colon
handout from proximal to distal (4)
1/3 transverse colon
descending colon
sigmoid colon
rectum
each gut segment is supplied by an
unpaired branch of the abdominal aorta
foregut derivatives are supplied by branches of the
celiac artery
midgut derivatives are supplied by branches of the
superior mesenteric artery
midgut derivatives are supplied by branches of the
superior mesenteric artery
handout derivatives are supplied by branches of the
inferior mesenteric artery
celiac artery is the
most complicated artery
superior mesenteric artery is the
largest artery
inferior mesenteric artery is the
smallest artery
where are preganglionic cell bodies of the foregut found?
T5-T9
splanchnic nerve of the foregut
greater splanchnic nerve
prevertebral ganglion of the foregut
celiac
postganiglionic axons of the foregut follow
celiac a
where are preganglionic cell bodies of the midgut?
T9-T12
splanchnic nerve of the midgut
lesser/least splanchnic nerves
pare-vertebral ganglion of the midgut
superior mesenteric/intermesenteric
postganglionic axons of the midgut follow the
superior mesenteric a
