Gastroduodenal artery
Encyclopedia
In anatomy
, the gastroduodenal artery is a small blood vessel
in the abdomen
.
It supplies blood directly to the pylorus
(distal part of the stomach
) and proximal part of the duodenum
, and indirectly to the pancreatic head (via the anterior and posterior superior pancreaticoduodenal arteries
).
It most commonly arises from the common hepatic artery
of the celiac trunk, but there are numerous variations of the origin . It terminates in a bifurcation when it splits into the right gastroepiploic artery
and the superior pancreaticoduodenal artery
, which in turn has anterior and posterior branches. These branches form functional anastomoses with the anterior and posterior inferior pancreaticoduodenal arteries from the superior mesenteric artery
.
"
Anatomy
Anatomy is a branch of biology and medicine that is the consideration of the structure of living things. It is a general term that includes human anatomy, animal anatomy , and plant anatomy...
, the gastroduodenal artery is a small blood vessel
Blood vessel
The blood vessels are the part of the circulatory system that transports blood throughout the body. There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and...
in the abdomen
Abdomen
In vertebrates such as mammals the abdomen constitutes the part of the body between the thorax and pelvis. The region enclosed by the abdomen is termed the abdominal cavity...
.
It supplies blood directly to the pylorus
Pylorus
The pylorus is the region of the stomach that connects to the duodenum . It is divided into two parts:* the pyloric antrum, which connects to the body of the stomach.* the pyloric canal, which connects to the duodenum....
(distal part of the stomach
Stomach
The stomach is a muscular, hollow, dilated part of the alimentary canal which functions as an important organ of the digestive tract in some animals, including vertebrates, echinoderms, insects , and molluscs. It is involved in the second phase of digestion, following mastication .The stomach is...
) and proximal part of the duodenum
Duodenum
The duodenum is the first section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms anterior intestine or proximal intestine may be used instead of duodenum...
, and indirectly to the pancreatic head (via the anterior and posterior superior pancreaticoduodenal arteries
Superior pancreaticoduodenal artery
The superior pancreaticoduodenal artery is an artery that supplies blood to the duodenum and pancreas. It is a branch of the gastroduodenal artery, which most commonly arises from the common hepatic artery of the celiac trunk...
).
It most commonly arises from the common hepatic artery
Common hepatic artery
In anatomy, the common hepatic artery is a short blood vessel that supplies oxygenated blood to the liver, pylorus , duodenum and pancreas....
of the celiac trunk, but there are numerous variations of the origin . It terminates in a bifurcation when it splits into the right gastroepiploic artery
Right gastro-omental artery
The right gastro-omental artery is one of the two terminal branches of the gastroduodenal artery. It runs from right to left along the greater curvature of the stomach, between the layers of the greater omentum, anastomosing with the left gastroepiploic branch of the splenic artery.Except at the...
and the superior pancreaticoduodenal artery
Superior pancreaticoduodenal artery
The superior pancreaticoduodenal artery is an artery that supplies blood to the duodenum and pancreas. It is a branch of the gastroduodenal artery, which most commonly arises from the common hepatic artery of the celiac trunk...
, which in turn has anterior and posterior branches. These branches form functional anastomoses with the anterior and posterior inferior pancreaticoduodenal arteries from the superior mesenteric artery
Superior mesenteric artery
In human anatomy, the superior mesenteric artery arises from the anterior surface of the abdominal aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the lower part of the duodenum through two-thirds of the transverse colon, as well as the pancreas.-Location...
.
Pathology
The gastroduodenal artery can be the source of a significant gastrointestinal bleed, which may arise as a complication of peptic ulcer disease.External links
- "Upper Gastrointestinal Bleeding: Surgical Perspective" - "Stomach, Spleen and Liver: Contents of the Hepatoduodenal ligamentHepatoduodenal ligament
The hepatoduodenal ligament is the portion of the lesser omentum extending between the porta hepatis of the liver and the superior part of the duodenum.Running inside it are the following:* hepatic artery proper* hepatic portal vein* common bile duct...
"