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The infracolic compartment lies ________ to the greater omentum and has L and R spaces.
posterior
Free communication occurs between the supracolic and infracolic compartments by _____________.
paracolic gutters
Describe the anchoring of the jejunum and ileum (to where are they anchored and by what)?
posterior abdominal wall, mesentery
What structures does the root of the mesentery cross?
duodenum, aorta, inferior vena cava, psoas major, right ureter, right gonadal vessels
Any part of the duodenum proximal to the entering of the bile duct into the duodenum is supplied by which vessel?
superior pancreaticoduodenal artery (branch of the GDA)
Any part of the duodenum distal to the entering of the bile duct is supplied by which vessel?
inferior pancreaticoduodenal artery (branch of SMA)
At what level does the SMA arise from the abdominal aorta?
L1
What does the SMA supply?
jejunum, ileum, cecum, appendix, and R 2/3 of the transverse colon
What are the branches of the SMA?
inferior pancreaticoduodenal, middle colic, right colic, ileocolic, jejunal and ileal branches
Describe the differences in the vasa recta and arcades of the jejunal and ileal areas?
jejunal - 1-2 arterial arcades per branch, long vasa recta, less fatty mesentery and therefore more windows than ileum (3 - 4 arcades per branch)
In what structure is the appendicular artery situated?
mesoappendix
At what level does the IMV arise from the abdominal aorta and what does it supply?
L3, left 1/3 of transverse colon, all descending colon, upper 2/3 of anal canal
What are the branches of the IMA?
Left colic, Sigmoid arteries, superior rectal artery
The portal vein is formed primarily by the union of which veins in what area?
splenic and SMV, behind neck of pancreas
Where does the IMV usually join the venous return system?
splenic vein
Into what veins do the R and L gastric veins drain?
portal
What are the locations of portal-systemic vein anastamoses?
inferior esophagus, anal canal (hemorrhoids), paraumbilical region, retroperitoneal
What are some of the effects of portal hypertension?
esophageal varices, hemorrhoids, ascites, hypersplenism, liver failure
What are the portal and systemic veins that anastomse in the inferior esophagus?
portal - left gastric, systemic - azygous
What clinical condition is associated with esophageal varices?
vomiting blood
What are the portal and systemic veins that anastamose in the paraumbliical region?
portal - paraumbilical veins, systemic - superficial epigastric veins
What clinical condition is associated with the portal-systemic venous anastamoses in the paraumblical region?
caput medusae
What are the portal and systemic veins that anastamose in the anal region?
portal - superior rectal, systemic - middle and inferior rectal
Which veins sometimes anastamose with the retroperitoneal wall and may be associated with hemorrhage?
colic, splenic, portal
Gastrin causes the relaxation of what structure in the cecum?
superior and interior fold forming ileaocecal valve
Does the cecum have mesentery?
no
Is the appendix covered by peritoneum?
yes
x of y cards