Where is the inferior mesenteric artery located?
The inferior mesenteric artery (IMA) is another major blood supply to the lower GI tract (Fig. 25.4). It is located at the level of L2-L4 (most often at the L3-L4 disk space level, 2–3 cm above the aortic bifurcation). The IMA supplies the distal transverse colon, descending colon, sigmoid colon, and rectum.
Where is the SMA artery located?
Where is the superior mesenteric artery? The superior mesenteric artery is in the midsection of the digestive tract (midgut). It originates from the aorta between the celiac artery and renal arteries. The celiac artery supplies blood to the liver, spleen and stomach.
Where does the inferior mesenteric deliver blood to?
The IMA supplies blood to the distal one-third of the transverse colon, descending colon and proximal two-thirds of the rectum.
Where does IMA originate?
The inferior mesenteric artery (IMA) is one of the three non-paired major splanchnic arteries, in the abdominal cavity, arising from the abdominal aorta and supplying the hindgut. It is the smallest of the three anterior visceral branches of the abdominal aorta.
At what vertebral level is the inferior mesenteric artery?
third lumbar vertebra
The inferior mesenteric artery arises from the abdominal aorta at the level of the third lumbar vertebra. It supplies the hindgut and has four major branches called left colic, sigmoid and superior rectal arteries.
What organs does the inferior mesenteric artery supply?
The inferior mesenteric artery, also a branch of the abdominal aorta, supplies the distal third of the transverse colon, the descending colon and sigmoid colon, and the superior portion of the rectum as the superior hemorrhoidal artery.
What does the SMA supply blood to?
The superior mesenteric artery supplies the midgut from the ampullary region of the second part of the duodenum to the splenic flexure of the large intestine. The inferior pancreaticoduodenal artery arises from the SMA and, along with the superior pancreaticoduodenal artery, supplies the head of the pancreas.
What level is the mesenteric artery?
It arises anterior to lower border of vertebra L1 in an adult. It is usually 1 cm lower than the celiac trunk. It initially travels in an anterior/inferior direction, passing behind/under the neck of the pancreas and the splenic vein.
At what vertebral level does the blocked artery branch from the aorta?
The terminal branches of the abdominal aorta, the left and right common iliac arteries, arise from the bifurcation in front of the body of L4 vertebra about 1.25 cm to the left of the median plane.
Is SMA Syndrome life threatening?
SMA syndrome is a rare but life-threatening cause of abdominal pain and vomiting. SMA syndrome can occur in patients without chronic emesis.