Phrenic arteries
Inferior mesenteric
Celiac, superior and inferior mesenteric arteries
AnswerThe portal confluence is the area where the superior mesenteric vein and the splenic vein meet. They run posterior to the pancreas and form the portal vein.
Small intestine
There are two mesenteric arteries in the human the superior and inferior. Both leave the descending aorta directly nad supply the GI tract. These arteries provide the definition of the the boundaries of the foregut, midgut and hindgut. The superior supplies the midgut and the inferior supplies the hindgut.
The Inferior Mesenteric Vein (iMV) drains into the splenic vein. The splenic vein ultimately "meets up" with the Superior Mesenteric Vein (SMV) to form the Hepatic Portal Vein (HPV)
inferior vena cava
The hepatic portal vein is created by the anastamoses between the superior mesenteric vein and spleinc vein. It is arguable that the inferior mesenteric vein joins at this same anastomoses but generally it actually joins the splenic vein which then meats the sup. mesenteric vein as stated above. The veins that drain into the portal vein (ie above the ansastmoses between the splenic and sup. mesenteric) are the cystic vein, the right gastric vein and the posterior-superior part of the pancreaticoduodenal vein.
inferior vena cava
The superior mesenteric
Colic arteries supply blood to colon.Human colon has different portions (ascending colon, transverse colon, descending colon and sigmoid colon).Right colic artery supplies blood to ascending colon.Middle colic artery supplies blood to tranverse colon.Left colic artery supplies blood to the descending colon.Sigmoid arteries (two or three) supplies blood to sigmoid colon.The right colic and middle colic arteries are branches of superior mesentric artery.The left coliac artery and sigmoid arteries are branches of inferior esentric artery.
The two veins that form hepatic portal vein are the splenic vein and the superior mesenteric vein. These veins usually receive blood from the inferior mesenteric, gastric, and cystic veins.