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29 Cards in this Set
- Front
- Back
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What are the 4 arteries that branch from the superior mesenteric artery?
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1)inferior pancreaticoduodenal artery (separates into ant/post branches)
2) middle colic artery 3) right colic artery 4) ileocolic artery |
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What causes arteriomesenteric occlusion?
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In very thin individuals there is less fat surrounding the gut & mesenteries --> less space around intestines -->SMA moves closer to aorta and squeezes the L. renal vein & 3rd part of the duodenum
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What is the spatial relationship between the SMV & SMA?
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SMV is anterior & to the right of SMA
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The middle colic artery supplies branches that lead to what anastomotic network?
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Marginal artery of Drummond
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The right colic artery can come from what 2 locations?
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1) SMA, after the middle colic artery
2) ileocolic artery |
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The right colic artery supplies which organ/region with blood?
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ascending colon (retroperitoneal)
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The last main branch of the SMA branches off into which 5 smaller arteries?
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1) ascending branch
2) anterior cecal artery 3) posterior cecal artery 4) ileal branch 5) appendicular artery |
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The jejunal and ileal arteries consist of which subdivisions?
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arterial arcades and "straight" arteries (arteriae rectae).
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What is the difference between the arcades & vasa recta of the jejunum & ileum?
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Jejunum - few arcades, long vasa recta
Ileum - numerous arcades, short vasa recta |
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The Superior Mesenteric Artery & Inferior Mesenteric Artery are at which vertebral levels?
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SMA - L1
IMA - L3 |
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What are the branches of the Inferior Mesenteric Artery? (3)
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1) left colic artery
2) two to four sigmoid branches 3) superior rectal artery |
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The left colic artery supplies which parts of the colon?
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descending colon & left colic flexure
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Which veins drain into the hepatic portal vein?
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superior mesenteric, inferior mesenteric, splenic
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The superior & inferior mesenteric lymph nodes form _____ trunks, which drain into ______.
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intestinal lymph (trunks), cysterna chyli
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The branches of which arteries contribute to the Marginal Artery of Drummond? (6)
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ileocolic, right colic, middle colic, left colic, sigmoid, superior rectal
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What is the functional role of the Ligament of Treitz?
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It supports the weight of the jejunum & ileum.
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Where is the Ligament of Treitz located?
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At the duodenojejunal flexure
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What ceccal structure will "lead you" to the appendix?
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Taenia coli
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What characteristics would allow you to distinguish/separate the jejunum from the ileum? (2)
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1) Jejunum has few arcades & long vasa recta; ileum has lots of arcades & short vasa recta
2) The folds/plicae on the inner surface of the ileum are shorter & fewer |
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What artery is located inside the superior ileocecal fold?
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Anterior cecal artery
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Pain in which regions of the abdomen could indicate appendicitis?
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Central (near umbilicus)
Right lower quadrant |
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The transverse colon is attached to the stomach by what structure?
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gastrocolic part of greater omentum
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What 3 unique structural features of the large intestine would allow you to distinguish it from the small intestine?
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1) haustrae (sacculations)
2) appendices epiploica (hanging fat tags) 3)teniae coli |
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How much of the rectum is in contact w/ peritoneum?
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upper 1/3
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Pain from the ureter refers to which vertebral segments?
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T12-L2
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Vagal fibers contain which plexes? (3)
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1)esophageal plexus
2) cardiac plexus 3) superior mesenteric plexus |
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Pelvic splanchnic nerves come from which vertebral regions?
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S2-S4
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What 3 nerve fibers would you expect to find along a typical gut vessel?
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2) sensory nerve to dorsal spinal cord
3) sympathetic motor nerve 4) parasympathetic motor nerve |
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Where do greater splanchnic nerves begin and end?
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Begin - T5-T9
End - celiac ganglion |
