Abdominal Blood Supply Flashcards
Boundaries of the foregut…
esophagus to major duodenal papilla
7 major organs of the foregut…
esophagus stomach proximal duodenum liver gallbladder pancreas spleen
Boundaries of the midgut…
distal duodenum to distal 1/3 of transverse colon
7 major organs of the midgut…
distal duodenum jejunum ileum cecum appendix ascending colon proximal 2/3 of transverse colon
Boundaries of the hindgut…
distal 1/3 of transverse colon to anal canal above pectinate line
4 major structures of hindgut…
distal 1/3 of transverse colon
descending colon
sigmoid colon
rectum
Major blood supply of foregut…
celiac trunk
Major blood supply of midgut…
superior mesenteric artery
Major blood supply of hindgut…
inferior mesenteric artery
The celiac trunk is located at the level of…
T12
the SMA is located at the level of…
L1
the IMA is located at the level of…
L3
3 three major branches o the celiac trunk (clockwise)…
left gastric artery
splenic artery
common hepatic artery
A major branch running superiorly off the left gastric artery…
esophageal branch
The left gastric artery travels along the _______ curvature of the stomach and sits within the _______
lesser curvature
lesser omentum
The splenic artery branches off the aorta and runs within the ________ along the border of the _________
splenorenal ligament
superior border of pancreas
The posterior gastric branch is a branch of the _______
splenic artery
What supplies blood to the fundus of the stomach?
splenic artery (via short gastric arteries)
This artery is a branch of the splenic artery and runs along the greater curvature of the stomach
left gastro-omental artery (gastroepiploic artery)
1st branch of the common hepatic artery…
gastroduodenal artery
the gastroduodenal artery passes ________
behind the duodenum
2 branches of the gastroduodenal artery (clockwise)
right gastro-omental artery (right gastroepiploic)
superior pancreaticoduodenal artery
2nd branch of common hepatic artery as it becomes hepatic artery proper…
right gastric artery
2 branches from the hepatic artery proper…
left and right hepatic artery
The cystic artery is a branch of the…
right hepatic artery
the cystic artery travels within the…
hepatoduodenal ligament
The SMA branches at the level of L1, about 1 inch inferior of celiac trunk, just behind which structure…
head of the pancreas
The SMA travels _______ to the renal vein
anterior
The SMA emerges anteriorly at the ________
uncinate process of the pancreas
1st branch of the SMA as it travels inferiorly…
inferior pancreaticoduodenal artery
Which part of SMA?
Longer vasa recta
few but large arcades
jejunum
Which part of SMA?
shorter vasa recta
more arcades, shorter loops
ileum
This branch of SMA supplies:
cecum
terminal ileum
ascending colon
ileocolic artery
the appendix is supplied with blood by the_____
appendicular artery
This branch of the SMA travels retroperitoneal to supply the ascending colon
right colic artery
This branch of SMA travels retroperitoneal to supply the transverse colon
middle colic artery
This branch of IMA travels retroperitoneal to supply the descending colon
left colic a.
3 major branches of IMA…
left colic artery
sigmoid artery
superior rectal artery
This artery runs along the colon and in the mesentary and anastomoses with ileocolic, right, middle, left colic, and sigmoid arteries
marginal artery
This artery communicates with the branches of SMA and IMA to provide redundant blood flow in case of ischemia in either SMA or IMA
marginal artery
3 major blood supplies for rectum…
superior, middle, inferior rectal arteries
The superior rectal artery is a branch of the ______
IMA
The middle rectal artery arises from the ______
internal iliac artery
the inferior rectal artery arises from the _______
internal pudendal artery
3 major veins which drain the small and large intestines and drain into the hepatic portal vein…
inferior mesenteric v.
superior mesenteric v.
splenic v.
location of the hepatic portal vein
L1
the hepatic portal vein sits behind the ______
neck of the pancreas
The _______ peritoneum lines the internal surface of the abdominopelvic wall
parietal peritoneum
the parietal peritoneum receives somatic or autonomic nerve supply?
somatic
Visceral or Parietal peritoneum?
well localized pain
sensitive to pressure, pain, laceration, temperature
Parietal peritoneum
Visceral or Parietal peritoneum?
poorly localized
sensitive to stretch and chemical irritation
Visceral peritoneum
Pain from visceral peritoneum is referred to…
dermatomes
visceral peritoneum has somatic or autonomic nerve supply?
autonomic
Define intraperitoneal organ…
enveloped by visceral peritoneum
3 examples of intraperitoneal organs…
stomach
liver
spleen
Define retroperitoneal…
no visceral peritoneum, only parietal peritoneum on anterior surface
A double layer of visceral peritoneum that connects in intraperitoneal organ to the posterior abdominal wall…
mesentery
Organs which developed and remain outside of the parietal peritoneum are called…
primarily retroperitoneal
organs which were initially intraperitoneal and suspended by mesentery, which became retroperitoneal as mesentery fused with posterior abdominal wall…
secondarily retroperitoneal
Retroperitoneal organs can be remembered with SAD PUCKER… which stands for…
Suprarenal glands
Aorta/IVC
Duodenum (except proximal 2cm)
Pancreas (except tail)
Ureters
Colon (ascending/descending)
Kidneys
Esophagus
Rectum
which part of the duodenum is NOT retroperitoneal?
proximal 2cm
Which part of the pancreas is NOT retroperitoneal?
tail
Which parts of the colon are considered secondarily retroperitoneal?
ascending/descending
3 organs which are primarily retroperitoneal…
esophagus, rectum, kidneys