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Abdominal quadrants, regions and planes
Anatomy of the abdominal viscera: Blood supply of the foregut, midgut and hindgut
Anatomy of the abdominal viscera: Esophagus and stomach
Anatomy of the abdominal viscera: Innervation of the abdominal viscera
Anatomy of the abdominal viscera: Kidneys, ureters and suprarenal glands
Anatomy of the abdominal viscera: Large intestine
Anatomy of the abdominal viscera: Liver, biliary ducts and gallbladder
Anatomy of the abdominal viscera: Pancreas and spleen
Anatomy of the abdominal viscera: Small intestine
Anatomy of the anterolateral abdominal wall
Anatomy of the diaphragm
Anatomy of the inguinal region
Anatomy of the muscles and nerves of the posterior abdominal wall
Anatomy of the peritoneum and peritoneal cavity
Anatomy of the vessels of the posterior abdominal wall
Anatomy clinical correlates: Anterior and posterior abdominal wall
Anatomy clinical correlates: Inguinal region
Anatomy clinical correlates: Other abdominal organs
Anatomy clinical correlates: Peritoneum and diaphragm
Anatomy clinical correlates: Viscera of the gastrointestinal tract
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Foregut Structures, Blood Supply and Innervation
Hindgut Structures, Blood Supply and Innervation
Midgut Structures, Blood Supply and Innervation
The gastrointestinal tract is essentially a long tube extending from our mouth to our rectum. We rely on it to eat, break down our food and turn it into well...you get the picture.
Due to its role in breakdown and absorption of nutrients, it is important to understand the different divisions and blood supply of the gastrointestinal tract.
The abdominal section of the gastrointestinal tract develops from three embryological structures called the primordial foregut, midgut and hindgut.
And, in turn, the foregut, midgut and hindgut all derive from the three embryonic germ layers: the endoderm, mesoderm and ectoderm.
The mesoderm is what forms the peritoneum, which either completely or partially lines the organs of the peritoneal cavity including the gastrointestinal tract.
It’s important to understand these different embryological divisions as the foregut, midgut, and hindgut each have their own unique blood supply.
The foregut extends from the esophagus to the duodenum at the level of the major duodenal papilla where the pancreatic and common bile duct insert, and it consists of the esophagus, stomach, the proximal duodenum, as well as the liver, gallbladder, pancreas and spleen.
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