What is the inferior mesenteric vein?
The inferior mesenteric vein drains the mesenteric arcade of the hindgut (comprising of distal transverse, descending, and sigmoid colon). Specifically, it drains the tributaries of sigmoid veins, middle and left colic veins, as well as the superior rectal vein.
What is a mesenteric vein?
The superior mesenteric vein is a blood vessel that drains blood from the small intestine (jejunum and ileum). Behind the neck of the pancreas, the superior mesenteric vein combines with the splenic vein to form the hepatic portal vein.
How do you identify an inferior mesenteric vein?
Venous Anatomy The inferior mesenteric vein usually enters the splenic adjacent to the confluence, but it may also enter the SMV either at or just caudal to the confluence. The coronary vein most often drains into the cephalic aspect of the main portal vein just beyond the confluence of the SMV and splenic vein.
Where does the inferior mesenteric vein flow?
In human anatomy, the inferior mesenteric vein (IMV) is a blood vessel that drains blood from the large intestine. It usually terminates when reaching the splenic vein, which goes on to form the portal vein with the superior mesenteric vein (SMV).
Which vein receives blood from inferior mesenteric vein?
Portal vein
| Portal vein | |
|---|---|
| System | Hepatic portal system |
| Drains from | Gastrointestinal tract, spleen, pancreas |
| Source | splenic vein, superior mesenteric vein, inferior mesenteric vein, pancreatic vein |
| Drains to | liver sinusoid |
Is there a mesenteric vein?
The superior mesenteric vein (SMV) is a large blood vessel in the abdomen. Its function is to drain blood from the small intestine as well as the first sections of the large intestine and other digestive organs. This large vein receives blood from several other veins (tributaries) in the digestive tract.
How is mesenteric vein thrombosis treated?
Anticoagulation is the treatment of choice for acute mesenteric venous thrombosis. Thrombolysis using systemic or transcatheter route is another option. Patients with peritoneal signs or refractory to initial measures require surgical exploration.
What organs does the inferior mesenteric artery supply?
The branches of the inferior mesenteric artery include 1) the left colic, which is located retroperitoneally and supplies the descending colon; 2) the sigmoid branches, which supply the sigmoid colon; and 3) the superior rectal artery, which is the terminal branch of the inferior mesenteric artery at the pelvic brim.
Where do mesenteric veins drain?
The superior mesenteric vein drains blood from the small intestine, cecum, ascending colon and transverse colon. It begins in the right iliac fossa, as a convergence of the veins draining the terminal ileum, cecum and appendix.
What is the medical definition of the mesenteric vein?
Medical Definition of mesenteric vein. : either of two veins draining the intestine, passing between the two layers of the mesentery, and associated with the corresponding mesenteric arteries: a : one that is a continuation of the superior rectal vein, that returns blood from the rectum, the sigmoid colon, and the descending colon,…
Where is the inferior mesenteric artery located in the body?
Inferior mesenteric artery – supplies the organs of the hindgut – the distal one third of the transverse colon, splenic flexure, descending colon, sigmoid colon and rectum. The venous drainage of the mesentery is via the superior mesenteric vein (SMV) and inferior mesenteric vein (IMV), which both run alongside their associated arteries.
Where does mesenteric venous thrombosis occur in the body?
Mesenteric venous thrombosis occurs when a blood clot forms in one or more of the major veins that drain blood from your intestines. There are three veins that carry blood from the intestines: These veins deliver nutrient-rich blood to the liver through the hepatic portal vein.
Where does the drainage of the mesentery take place?
The venous drainage of the mesentery is via the superior mesenteric vein (SMV) and inferior mesenteric vein (IMV), which both run alongside their associated arteries. Fig 4 – The superior mesenteric artery and its branches.