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Marginal Artery Of The Colon
In human anatomy, the marginal artery of the colon, also known as the marginal artery of Drummond, the artery of Drummond, and simply as the marginal artery, is an artery that connects the inferior mesenteric artery with the superior mesenteric artery. It is sometimes absent, as an anatomical variant. Structure 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. It provides an effective anastomosis between these two arteries for the large intestine. Variation The marginal artery is almost always present, and its absence should be considered a variant. Clinical significance Removal of the inferior mesenteric artery Along with branches of the internal iliac arteries, it is usually sufficiently large to supply the oxygenated blood to the large intestine. This means that the inferior mesenteric artery does not have to be re-implanted (re-attached) i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdominal Aorta
In human anatomy, the abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct continuation of the descending aorta (of the thorax). Structure The abdominal aorta begins at the level of the diaphragm, crossing it via the aortic hiatus, technically behind the diaphragm, at the vertebral level of T12. It travels down the posterior wall of the abdomen, anterior to the vertebral column. It thus follows the curvature of the lumbar vertebrae, that is, convex anteriorly. The peak of this convexity is at the level of the third lumbar vertebra (L3). It runs parallel to the inferior vena cava, which is located just to the right of the abdominal aorta, and becomes smaller in diameter as it gives off branches. This is thought to be due to the large size of its principal branches. At the 11th rib, the diameter is 122mm long and 55mm wide and this is because of the constant pressure. The abdominal aorta is clinically divided into 2 segments: # Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, and hormones. The blood cells are mainly red blood cells (erythrocytes), white blood cells (leukocytes), and (in mammals) platelets (thrombocytes). The most abundant cells are red blood cells. These contain hemoglobin, which facilitates oxygen transport by reversibly binding to it, increasing its solubility. Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Blood is circulated around the body through blood vessels by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Manitoba
The University of Manitoba (U of M, UManitoba, or UM) is a public research university in Winnipeg, Manitoba, Canada. Founded in 1877, it is the first university of Western Canada. Both by total student enrolment and campus area, the University of Manitoba is the largest university in the province of Manitoba. Its main campus is located in the Fort Garry, Winnipeg, Fort Garry neighbourhood of Winnipeg, with other campuses throughout the city: the Bannatyne Campus, the James W. Burns Executive Education Centre, the William Norrie Centre, and the French-language affiliate, Université de Saint-Boniface in the Saint Boniface, Winnipeg, Saint Boniface ward. Research at the university contributed to the creation of canola oil in the 1970s. Likewise, University of Manitoba alumni include Nobel Prize recipients, Academy Awards, Academy Award winners, Order of Merit recipients, and Lists of Olympic medalists, Olympic medalists. , there have been 99 Rhodes Scholarship recipients from the Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marginal Artery (other)
Marginal artery can refer to: * Marginal artery of the colon, also known as the artery of Drummond * Right marginal branch of right coronary artery The right marginal branch of right coronary artery (or right marginal artery) is the largest marginal branch of the right coronary artery. It follows the acute margin of the heart. It supplies blood to both surfaces of the right ventricle. Stru ..., 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 {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marginal Branch Of The Right Coronary Artery
Marginal may refer to: * ''Marginal'' (album), the third album of the Belgian rock band Dead Man Ray, released in 2001 * ''Marginal'' (manga) * '' El Marginal'', Argentine TV series * Marginal seat or marginal constituency or marginal, in politics See also Economics * Marginalism *Marginal analysis *Marginal concepts *Marginal cost * Marginal demand *Marginal product *Marginal product of labor *Marginal propensity to consume *Marginal rate of substitution *Marginal use *Marginal utility *Marginal rate Other * Margin (other) * Marginalization * Marginal intra-industry trade, where the change in a country's exports are essentially of the same products as its change in imports * Marginal land, land that is of little value because of its unsuitability for growing crops and other uses * Marginal model, in hierarchical linear modeling * Marginal observables, in physics; see Renormalization group * Marginal person, in sociology; see Marginalization * Marginal plant, see Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ischemic Colitis
Ischemic colitis (also spelled ischaemic colitis) is a medical condition in which inflammation and injury of the large intestine result from inadequate blood supply (ischemia). Although uncommon in the general population, ischemic colitis occurs with greater frequency in the elderly, and is the most common form of bowel ischemia. http://www.guideline.gov/summary/summary.aspx?ss=15&doc_id=3069&nbr=2295 Causes of the reduced blood flow can include changes in the systemic circulation (e.g. low blood pressure) or local factors such as constriction of blood vessels or a blood clot. In most cases, no specific cause can be identified. Ischemic colitis is usually suspected on the basis of the clinical setting, physical examination, and laboratory test results; the diagnosis can be confirmed by endoscopy or by using sigmoid or endoscopic placement of a visible light spectroscopic catheter (see Diagnosis). Ischemic colitis can span a wide spectrum of severity; most patients are treated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Left Colic Artery
The left colic artery is a branch of the inferior mesenteric artery distributed to the descending colon, and left part of the transverse colon. It ends by dividing into an ascending branch and a descending branch; the terminal branches of the two branches go on to form anastomoses with the middle colic artery, and a sigmoid artery (respectively). Structure The left colic artery usually represents the dominant arterial supply to the left colic flexure. Course The left colic artery passes to the left posterior to the peritoneum. After a short but variable course, it divides into an ascending branch and a descending branch. Branches and anastomoses Ascending branch The ascending branch passes superior-ward. It passes anterior to the (ipsilateral) psoas major muscle, gonadal vessels, ureter, and kidney; it passes posterior to the inferior mesenteric vein. Its terminal branches form anastomoses with those of the middle colic artery; it also forms anastomoses with the desc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Colic Artery
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 colon. Parts of the artery may be removed in different types of hemicolectomy. Structure The middle colic artery supplies the superior/distal part of the ascending colon and right/proximal two-thirds of the transverse colon. Origin The middle colic artery is a branch of the superior mesenteric artery, branching off from its right aspect. Its origin is situated just inferior the neck of the pancreas. It may share a common origin with the right colic artery. Course The middle colic artery passes anterosuperiorly between the layers of the transverse mesocolon just right of the midl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Aortic Surgery
Open aortic surgery (OAS), also known as open aortic repair (OAR), describes a technique whereby an abdominal, thoracic or retroperitoneal surgical incision is used to visualize and control the aorta for purposes of treatment, usually by the replacement of the affected segment with a prosthetic Vascular grafting, graft. OAS is used to treat Abdominal aortic aneurysm, aneurysms of the abdominal and thoracic aorta, aortic dissection, acute aortic syndrome, and aortic ruptures. Aortobifemoral bypass is also used to treat atherosclerotic disease of the abdominal aorta below the level of the renal arteries. In 2003, OAS was surpassed by endovascular aneurysm repair (EVAR) as the most common technique for repairing abdominal aortic aneurysms in the United States. Depending on the extent of the aorta repaired, an open aortic operation may be called an Infrarenal aortic repair, a Thoracic aortic repair, or a Thoracoabdominal aortic repair. A thoracoabdominal aortic repair is a more extensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Iliac Artery
The internal iliac artery (formerly known as the hypogastric artery) is the main artery of the pelvis. Structure The internal iliac artery supplies the walls and viscera of the pelvis, the buttock, the reproductive organs, and the medial compartment of the thigh. The vesicular branches of the internal iliac arteries supply the bladder. It is a short, thick vessel, smaller than the external iliac artery, and about 3 to 4 cm in length. Course The internal iliac artery arises at the bifurcation of the common iliac artery, opposite the lumbosacral articulation, and, passing downward to the upper margin of the greater sciatic foramen, divides into two large trunks, an anterior and a posterior. It is posterior to the ureter, anterior to the internal iliac vein, anterior to the lumbosacral trunk, and anterior to the piriformis muscle. Near its origin, it is medial to the external iliac vein, which lies between it and the psoas major muscle. It is above the obturator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inferior Mesenteric Artery
In human anatomy, the inferior mesenteric artery (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. The regions supplied by the IMA are the descending colon, the sigmoid colon, and part of the rectum. Structure Origin The IMA arises from the anterior aspect of the abdominal aorta. Its origin is situated at the L3 vertebral level ( subcostal plane), below the origins of the two renal arteries, 3-4 cm above the aortic bifurcation, at the level of the umbilicus, and posterior to the inferior border of the horizontal (III) part of the duodenum. Branches Along its course, the IMA has the following branches: All these arterial branches further divide into arcades which then supply the colon at regular intervals. Relations The IMA is accompanied along its course by a similarly named vein, the inferior mesenteric vein, which drains into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Large Intestine
The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the Digestion, digestive system in tetrapods. Water is absorbed here and the remaining waste material is stored in the rectum as feces before being removed by defecation. The Colon (anatomy), colon (progressing from the ascending colon to the transverse colon, transverse, the descending colon, descending and finally the sigmoid colon) is the longest portion of the large intestine, and the terms "large intestine" and "colon" are often used interchangeably, but most sources define the large intestine as the combination of the cecum, colon, rectum, and anal canal. Some other sources exclude the anal canal. In humans, the large intestine begins in the right iliac region of the pelvis, just at or below the waist, where it is joined to the end of the small intestine at the cecum, via the ileocecal valve. It then continues as the colon ascending colon, ascending the abdomen, across t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
