GI Flashcards
1
Q
What is the sympathetic component of the GI system?
A
Thoracic splanchnic n. —> celiac and superior mesenteric ganglion
Lumbar splanchnic n. —> inferior mesenteric ganglion
2
Q
What is the parasympathetic component of the GI system?
A
Vagus n.
Pelvic splanchnic n. (S2-S4)
3
Q
What does the celiac ganglion (T5-T9) innervate?
A
Distal esophagus, stomach, proximal duodenum, liver, gall bladder, spleen, portions of the pancreas
4
Q
What does the superior mesenteric ganglion innervate (T10-T11)?
A
Distal duodenum, portions of pancreas, jejunum, ascending colon, proximal 2/3 of the transverse colon
5
Q
What does the inferior mesenteric ganglion (T12-L2) innervate?
A
Distal 1/3 of the transverse colon, descending colon, sigmoid colon, rectum
