Scribes Flashcards
Name 3 abdominal arteries that are end arteries
Most vasa recta of GI tract
Splenic artery
Short gastric artery
3 major branches of abdominal aorta (aka Great Vessels)
Celiac artery
Superior Mesenteric Artery
Inferior Mesenteric Artery
Celiac trunk is found at what level?
T12/L1
Celiac trunk supplies blood to structures that originate from embryonic_______?
foregut
Celiac trunk branches supply what organs?
abdominal espophagus
stomach
proximal (first part) of duodenum
What is the path from the celiac trunk to the esophagus?
Celiac trunk>left gastric artery>esophageal branch
What artery does the left gastric artery anastomose with?
right gastric artery
What is the path of the celiac artery to the fundus of the stomach?
Celiac trunk>Splenic artery>Short Gastric artery>fundus of stomach
What is the path of the celiac trunk to the superior portion of greater curvature of stomach and omentum?
Celiac trunk>Splenic artery>Left Gastroepiploic>superior portion of the greater curvature of stomach and omentum
What artery does the left gastroepiploic artery anastomose with?
right gastroepiploic artery
What is the path of the celiac trunk to supply the pancreas?
Celiac trunk>Splenic artery>pancreatic branches
Which direction does the common hepatic artery split off of the celiac trunk ?
right
Common Hepatic Artery runs to the patient’s right and then splits into?
Proper Hepatic Artery
Gastroduodenal Artery
What is the path of the celiac trunk to supply the biliary tree?
Celiac trunk>Common hepatic artery> Proper Hepatic artery> Right Hepatic Artery>cystic artery>gallbladder
The Proper Hepatic Artery gives off__________ that anastomoses with_______?
the proper hepatic artery gives off right gastric artery that anastomoses with left gastric artery
What happens if the proper hepatic artery damaged?
damage to biliary tree
What is the path of celiac trunk to inferior portion the greater curvature of the stomach?
Celiac trunk>Common Hepatic Artery> Gastroduodenal artery>Right gastroepiploic artery>inferior portion greater curvature of stomach (and then anastomoses with left gastroepiploic artery)
What are the two branches of the Gastroduodenal artery?
Right gastroepiploic artery
Superior Pancreaticoduodenal artery
Superior mesenteric artery found at vertebral level?
L1
What structures does the superior mesenteric artery supply?
Embryonic midgut structures
Duodenum (except first part)
Small intestine
Cecum
Ascending colon
First 2/3 Transverse colon
What is SMA Syndrome
Superior mesenteric artery constricts the duodenum causing intestinal obstruction
What is nutcracker syndrome?
What are the main branches of the SMA?
Inferior Pancreaticoduodenal
Colic
Ileal
Jejunal
What Colic branch supplies ascending colon?
Right Colic artery
What Colic branch supplies mesentery of transverse colon and splenic flexure?
Middle Colic Artery
Middle Colic Artery and Left colic artery anastomose to prevent?
ischemia
What Colic branch supplies ilieocecal junction?
Ileocolic artery
Inferior Mesenteric artery found at vertebral level ?
L3
IMA supplies what structures?
embryonic hindgut structures
Last 1/3 of transverse colon
Descending colon
Sigmoid colon
Rectum
Upper 1/2 of anus
What are three main branches of IMA?
Left Colic artery
Sigmoid Artery
SUperior rectal artery
What is the Marginal Artery (of Drummond)
Collection of anastomoses of the branches of the mesenteric arteries that runs the entire length of the inner border of colon
What is function of Marginal Artery (of Drummond)?
provide collateral circulation between middle colic artery (SMA) and left colic artery (IMA)
___ is occluded in 50% of men over 50
IMA
Function of Portal Vein?
transports deoxygenated, nutrient-rich blood from GI tract to liver where it is processed and dumped into IVC
What 3 veins come together to form portal vein?
Splenic vein
Superior Mesenteric Vein
Inferior Mesenteric Vein
Venous return of foregut, midgut, hindgut?
Splenic vein-foregut
SMV-midgut
IMV-hindgut
What is characteristic of the portal vein that differs from other circulation?
NO VALVES
How does blood flow in the portal circulation?
Blood from RIGHT side (SMV) preferentially flows to RIGHT SIDE OF LIVER
Blood from LEFT side (IMV and SPLENIC v) flows to LEFT SIDE OF LIVER
