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In some individuals, the left renal vein passes posterior to the abdominal aorta instead of in anterior to it; [1] this is termed a retro-aortic left renal vein (also known as "The Vein of Schnitker"). If there is both a vein passing in front of and one behind the aorta this is called a circumaortic renal vein.
Due to the anatomical position of the aorta, the inferior vena cava, and the kidneys, the right renal artery is normally longer than the left renal artery. [1] [6] The right passes behind the inferior vena cava, the right renal vein, the head of the pancreas, and the descending part of the duodenum. It’s somewhat lower than the left one.
It is covered, anteriorly, by the lesser omentum and stomach, behind which are the branches of the celiac artery and the celiac plexus; below these, by the lienal vein (splenic vein), are the pancreas, the left renal vein, the inferior part of the duodenum, the mesentery, and the aortic plexus.
The duodenojejunal flexure is surrounded by the suspensory muscle of the duodenum. [4]: 274 It is retroperitoneal, so is less mobile than the jejunum that comes after it, helping to stabilise the jejunum. [5] The duodenojejunal flexure lies in front of the left psoas major muscle, the left renal artery, and the left renal vein.
Bounded by the posterior layer of peritoneum and the anterior leaf of the renal fascia. It contains the following structures: Pancreas; Ascending and descending colon; Duodenum; Posterior pararenal space. Bounded by the posterior leaf of the renal fascia and the muscles of the posterior abdominal wall.
The anterior superior pancreaticoduodenal vein drains into the right gastroepiploic vein, as do the veins of the lower first part of the duodenum and the pylorus (subpyloric veins). The upper first part of the duodenum is drained by suprapyloric veins, which can drain into the portal vein or the posterior superior pancreaticoduodenal vein ...
After filtration occurs, the blood moves through a small network of venules that converge into interlobular veins. As with the arteriole distribution, the veins follow the same pattern: the interlobular provide blood to the arcuate veins then back to the interlobar veins, which come to form the renal vein exiting the kidney for transfusion for ...
The human hepatic portal system delivers about three-fourths of the blood going to the liver.The final common pathway for transport of venous blood from spleen, pancreas, gallbladder and the abdominal portion of the gastrointestinal tract [2] (with the exception of the inferior part of the anal canal and sigmoid colon) is through the hepatic portal vein.