What are the branches of the internal iliac artery? branches of external iliac artery.
Which of the following establishes a connection between branches of the superior and inferior mesenteric arteries?
What are the branches of the superior mesenteric artery and what part of the GIT does each branch supply?
- Inferior Mesenteric Artery. arises at the level of L3.
- three branches of Inferior Mesenteric Artery. Left Colic Artery, Sigmoid Branches, Superior Rectal Artery.
- Left Colic Artery. supplies the end of transverse colon and beginning of descending colon.
- Sigmoid Branches. …
- Superior Rectal Artery.
The distal branches of the superior mesenteric artery (right colic, ileocolic, and middle colic) and the inferior mesenteric artery (sigmoid and left colic) supply the colon. They are also connected to each other by an intricate arterial arcade along the mesenteric border known as the Marginal Artery of Drummond.
The inferior mesenteric artery, also a branch of the abdominal aorta, supplies the distal third of the transverse colon, the descending colon and sigmoid colon, and the superior portion of the rectum as the superior hemorrhoidal artery.
|Superior mesenteric artery|
|Branches||inferior pancreaticoduodenal middle colic right colic intestinal branches (jejunal, ileal) ileocolic|
|Vein||superior mesenteric vein|
Inferior pancreaticoduodenal, intestinal, ileocolic, right colic and middle colic arteries. What are the five branches of the superior mesenteric artery? Left colic, sigmoid and superior rectal arteries.
The most direct communication between the superior and inferior mesenteric arteries is established in the arcade of Riolan, which is a portion of the marginal artery of Drummond formed between the right side of the transverse colon and the upper descending colon.
|left colic artery||supplies descending colon|
|sigmoid branches||the most superior being described as ‘the superior sigmoid artery’|
Blood supply and lymphatic drainage of the large intestine The large intestine is supplied by the superior and inferior mesenteric arteries (Figs 4.33–4.36). The branches of the superior mesenteric artery are the ileocolic, right colic and the middle colic arteries (Figs 4.33–4.34).
The inferior pancreaticoduodenal artery (IPD) is the first branch of the superior mesenteric artery. After leaving its origin, the IPD forms two pancreaticoduodenal arcades which run anteriorly and posteriorly, between the head of the pancreas and the duodenum.
The left colic (a branch of the inferior mesenteric artery) and the middle colic (a branch of the superior mesenteric artery) have a focally small anastomosis, which makes the splenic flexure a watershed area that is vulnerable to ischaemia.
There are five arteries that branch from the abdominal aorta: the celiac artery, the superior mesenteric artery, the inferior mesenteric artery, the renal arteries and the iliac arteries.
The celiac trunk gives off branches to the diaphragm, then divides into three main branches, the small left gastric artery which goes straight up, and the large common hepatic, and splenic arteries, which go to the right and left.
The mesenteric arteries take blood from the aorta and distribute it to a large portion of the gastrointestinal tract. Both the superior and inferior mesenteric arteries arise from the abdominal aorta. Each of these arteries travel through the mesentery, within which they branch several times before reaching the gut.
The smaller superior mesenteric vein (SMV) sign is a well‐known computed tomography (CT) parameter for acute superior mesenteric artery (SMA) occlusion. This CT sign is potentially beneficial for the early diagnosis of acute SMA occlusion; however, few reports have documented this sign.
Branches. The subclavian arteries give off five major arteries each: the vertebral artery, the internal thoracic artery, the thyrocervical trunk, the costocervical trunk, and the dorsal scapular artery.
The superior mesenteric a. supplies all of the small intestine (except for the proximal portion of the duodenum), the vermiform appendix, the cecum, the ascending colon, and the transverse colon.
The renal arteries deliver to the kidneys of a normal person at rest 1.2 litres of blood per minute, a volume equivalent to approximately one-quarter of the heart’s output. Thus, a volume of blood equal to all that found in the body of an adult human being is processed by the kidneys once every four to five minutes.
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.
OriginCeliac trunkBranchesGastroduodenal artery, proper hepatic arterySupplyLiver, pylorus of the stomach, duodenum, pancreas, gallbladder
The inferior mesenteric ganglion is a ganglion located near where the inferior mesenteric artery branches from the abdominal aorta.
The inferior mesenteric artery (IMA) is a major branch of the abdominal aorta. It supplies arterial blood to the organs of the hindgut – the distal 1/3 of the transverse colon, splenic flexure, descending colon, sigmoid colon and rectum.
Jejunal and ileal arteries: Supply blood to the jejunum (midsection of the small intestine) and part of the ileum (last part of the small intestine).
The jejunal and ileal branches supply the jejunum and ileum, respectively. The ileocolic artery supplies the distal ileum, cecum, and proximal ascending colon.
Proximal to the 2nd part of the duodenum (approximately at the major duodenal papilla – where the bile duct enters) the arterial supply is from the gastroduodenal artery and its branch the superior pancreaticoduodenal artery.
Splenic artery: This artery offers multiple branches to the upper and middle parts of the greater curvature and fundus of the stomach as well as to the pancreas. This artery ends its course by providing oxygenated blood to the spleen.
The superior mesenteric arterys initial course is forwards and downwards, and it travels posterior to the neck of the pancreas and the splenic vein. The superior mesenteric artery is usually found running to the left side of the superior mesenteric vein (which drains the same region as the artery supplies).
The superior pancreaticoduodenal artery is a branch of gastroduodenal artery that supplies the duodenum and pancreas.
Pancreaticoduodenal veinsDrains frompancreas, duodenumDrains tohepatic portal vein, superior mesenteric veinArteryInferior pancreaticoduodenal artery, Superior pancreaticoduodenal arteryIdentifiers
Behind the head of the pancreas the artery usually anastomoses with the posterior superior pancreaticoduodenal artery to form the inferior pancreaticoduodenal artery. The ASPA is also sometimes divided into several arcades.
Add on the Inferior mesenteric artery (IMA). Identify the left colic and superior rectal branches. To appreciate how most of the IMA and its branches are retroperitoneal and course along the posterior body wall, rotate the image to 280 degrees and remove the ilium.
The superior mesenteric artery (SMA) is constant in its retroperitoneal course and easily identified on computed tomography (CT).
The abdominal aorta runs parallel to the inferior vena cava, located just to the right of the abdominal aorta. The abdominal aorta lies slightly to the left of the midline of the body.
- Lumbar veins.
- Right gonadal vein.
- Renal veins.
- Right suprarenal vein.
- Inferior phrenic veins.
- Hepatic veins.
- Common iliac veins.
Terms in this set (13) celiac, superior mesenteric, renal, gonadal and inferior mesenteric arteries.
Of the visceral branches, the celiac artery and the superior and inferior mesenteric arteries are unpaired, while the suprarenals, renals, internal spermatics, and ovarian are paired.
The GIT is supplied by the three anterior branches of the abdominal aorta. From superior to inferior, these include the celiac trunk, SMA, and IMA. These three branches are unpaired and their terminal branches anastomose to provide the collateral supply.
- Celiac trunk.
- Superior mesenteric artery.
- Renal artery.
- Gonadal artery.
- Common iliac artery.
Celiac artery branches are the common hepatic, left gastric, and splenic arteries. These branches supply the liver, gallbladder, stomach, pancreas, spleen, and portion of the duodenum – the embryonic foregut structures.
Superior mesenteric arteryBranchesinferior pancreaticoduodenal middle colic right colic intestinal branches (jejunal, ileal) ileocolicVeinsuperior mesenteric veinSuppliesintestineIdentifiers
The Circle of Willis is the joining area of several arteries at the bottom (inferior) side of the brain. At the Circle of Willis, the internal carotid arteries branch into smaller arteries that supply oxygenated blood to over 80% of the cerebrum.