What does SMA artery supply?
The superior mesenteric artery supplies the midgut from the ampullary region of the second part of the duodenum to the splenic flexure of the large intestine. The inferior pancreaticoduodenal artery arises from the SMA and, along with the superior pancreaticoduodenal artery, supplies the head of the pancreas.
What connects SMA to IMA?
The SMA and IMA are linked through the marginal artery of Drummond and may also be connected through the arc of Riolan (Fig. 11). The marginal artery of Drummond represents the major collateral arcade between the two mesenteric vessels.
What is a SMA artery?
The superior mesenteric artery is one of the main arteries of the abdomen. It runs from the abdominal portion of the aorta to the third section of the small intestine, the ileum. Mesenteric refers to the mesentery, which is a fold of tissue that anchors the small intestine to the abdominal wall.
What level is the IMA?
L3
In human anatomy, the inferior mesenteric artery, often abbreviated as IMA, is the third main branch of the abdominal aorta and arises at the level of L3, supplying the large intestine from the distal transverse colon to the upper part of the anal canal.
What are the symptoms of SMA syndrome?
The signs and symptoms of superior mesenteric artery syndrome vary but may include:
- Feeling full quickly when eating.
- Bloating after meals.
- Burping (belching)
- Nausea and vomiting of partially digested food or bile-like liquid.
- Small bowel obstruction.
- Weight loss.
What artery supplies the colon?
The superior mesenteric artery (SMA) and the inferior mesenteric artery (IMA) provide blood supply to the colon. Communication between these two vessels happens via the marginal artery, which runs parallel to the length of the entire colon.
Where is the SMA artery?
In human anatomy, the superior mesenteric artery (SMA) arises from the anterior surface of the abdominal aorta, just inferior to the origin of the celiac trunk, and supplies blood to the intestine from the lower part of the duodenum through two-thirds of the transverse colon, as well as the pancreas.
What arteries supply ovaries and testes?
The gonadal arteries are the paired primary vascular supply to the ovaries in the female and the testes in the male.
What are the three main branches off of the celiac trunk artery )?
Its major branches include the celiac trunk, superior mesenteric artery, and inferior mesenteric artery. The first major branch, which comes off anteriorly at the T12 level, is the celiac trunk.
How does superior mesenteric artery syndrome ( SMAs ) work?
Summary Summary. Superior mesenteric artery syndrome (SMAS) is a digestive condition that occurs when the duodenum (the first part of the small intestine) is compressed between two arteries (the aorta and the superior mesenteric artery). This compression causes partial or complete blockage of the duodenum.
Where does the SMA and the IMA anastomose?
The SMA and IMA anastomose via the marginal artery of the colon (artery of Drummond) and via Riolan’s arcade (also called the “meandering artery”, an arterial connection between the left colic artery and the medial colic artery). The territory of distribution of the IMA is more or less equivalent to the embryonic hindgut.
Where does the SMA come from in the colon?
The SMA arises from the aorta between T12 and L2. The usual branches of the SMA to colon include the ileocolic artery, the right colic artery and the middle colic artery, supplying in general the cecum ascending colon and transverse colon respectively. The ileocolic artery almost always arises directly from the SMA.
Where is the IMA located in the human body?
The regions supplied by the IMA are the descending colon, the sigmoid colon, and part of the rectum. Proximally, its territory of distribution overlaps (forms a watershed) with the middle colic artery, and therefore the superior mesenteric artery.