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The marginal artery runs in the mesentery close to the large intestine as part of the vascular arcade that connects the superior mesenteric artery and the inferior mesenteric artery. [1] It provides an effective anastomosis between these two arteries for the large intestine.
The left marginal artery (or obtuse marginal artery) is a branch of the circumflex artery, originating at the left atrioventricular sulcus, traveling along the left margin of heart towards the apex of the heart.
Marginal artery can refer to: Marginal artery of the colon, also known as the artery of Drummond; Right marginal branch of right coronary artery, a branch of the right coronary artery that follows the acute margin of the heart; Left marginal artery, a branch of the circumflex artery, traveling along the left margin of heart
The middle colic artery is an artery of the abdomen; a branch of the superior mesenteric artery distributed to parts of the ascending and transverse colon.It usually divides into two terminal branches - a left one and a right one - which go on to form anastomoses with the left colic artery, and right colic artery (respectively), thus participating in the formation of the marginal artery of the ...
In humans, many of these branches are named, but in smaller animals the branches are more variable. In some animals, including humans, branches of these arteries join with the marginal artery of the colon, which means that occlusion of one of the main arteries does not necessarily lead to the death of the part of the gut that it usually supplies.
Proximally, its territory of distribution overlaps (forms a watershed) with the middle colic artery, and therefore the superior mesenteric artery. 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 ...
The right marginal branch is the largest branch to split off from the right coronary artery. [1] [2] It often anastomoses with the nearby parallel posterior interventricular artery, which itself is usually a continuation of the right coronary artery. [3]
Right marginal artery; Left coronary artery. anterior interventricular. septal; diagonal; circumflex. SA nodal artery (in 40%) posterior interventricular artery ...
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