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Encyclopedia > Inferior mesenteric artery
Artery: Inferior mesenteric artery
Sigmoid colon and rectum, showing distribution of branches of inferior mesenteric artery and their anastomoses. Note that the 'hemorrhoidal' arteries are now known as the 'rectal' arteries, and are not the source of hemorrhoids.
Frontal view of the abdominal aorta and the territory supplied by the inferior mesenteric artery and its branches. The arteries on the right side (left side of image) that supply the ascending colon and transverse colon arise from the superior mesenteric artery. The artery connecting the middle colic artery and left colic artery (not labeled) is known as the marginal artery.
Latin a. mesenterica inferior
Gray's subject #154 609
Supplies
From abdominal aorta
To
Vein inferior mesenteric vein
MeSH A07.231.114.565.510
Dorlands/Elsevier {{{DorlandsPre}}}/{{{DorlandsSuf}}}

In human anatomy, the inferior mesenteric artery, often abbreviated as IMA, supplies the large intestine from the left colic (or splenic) flexure to the upper part of the rectum, which includes 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. The SMA and IMA anastomose via the marginal artery (artery of Drummond). The territory of distribution of the IMA is more or less equivalent to the embryonic hindgut. Image File history File links Gray538. ... The sigmoid colon is the part of the large intestine after the descending colon and before the rectum. ... The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx. ... Anastomoses any connection between two arteries providing collateral (redundant) circulation of blood to a tissue. ... Image File history File links Download high resolution version (535x650, 96 KB) Summary inferior mesenteric artery Grays Anatomy - copyright expired thus public domain http://education. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... In anatomy of the digestive system, the colon or large intestine or large bowel is the part of the intestine from the cecum to the rectum. ... In anatomy of the digestive system, the colon is the part of the intestine from the cecum to the rectum. ... The superior mesenteric artery arises from the anterior surface of the aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the duodenum and pancreas to the left colic flexure. ... Frontal view of the abdominal aorta and the territory supplied by the inferior mesenteric artery. ... It has been suggested that History of the Latin language be merged into this article or section. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... The portal vein and its tributaries. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... Human anatomy or anthropotomy is a special field within anatomy. ... In anatomy of the digestive system, the colon is the part of the intestine from the cecum to the rectum. ... The posterior aspect of the rectum exposed by removing the lower part of the sacrum and the coccyx. ... The Descending Colon passes downward through the left hypochondriac and lumbar regions along the lateral border of the left kidney. ... The sigmoid colon is the part of the large intestine after the descending colon and before the rectum. ... Frontal view of the abdominal aorta and the territory supplied by the inferior mesenteric artery. ... Hindgut is the posterior (caudal) part of the alimentary canal. ...


The IMA has the following branches:

  • left colic artery
  • sigmoid branches (the most superior being described as 'the superior sigmoid artery')
  • superior rectal, effectively the terminal branch of the IMA (the continuation of the IMA after all other branches)

All these arterial branches further divide into arcades which then supply the colon at regular intervals. Colon has several meanings: colon (anatomy) colon (punctuation) colon (rhetoric) See also Colón This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...


The IMA branches off the anterior surface of the abdominal aorta, approximately midway between the renal artery branch points and the abdominal aortic bifurcation (into the common iliac arteries). It is accompanied along its course by a similarly named vein, the inferior mesenteric vein, which drains into the splenic vein. The IMV therefore drains to the portal vein and does not fully mirror the course of the IMA. AORTA can also mean always-on real-time access, referring to WAN computer networks. ... Human kidneys viewed from behind with spine removed The renal arteries normally arise off the abdominal aorta and supply the kidneys with blood. ... The noun bifurcation (from latin bifurcare, to split (fork) into two), has several related meanings. ... The common iliac arteries are two large arteries, about 4cm long in adults but more than a centimetre in diameter, that originate from the aortic bifurcation and terminate when bifurcating into the external iliac artery and internal iliac artery. ... Vein - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... The portal vein and its tributaries. ... The portal vein and its tributaries - the largest are the superior mesenteric vein and splenic vein. ...


The IMA and/or its branches must be resected for a left hemicolectomy.


A horseshoe kidney, a rare (1 in 600) anomaly of the kidneys, will be positioned below the IMA. Horseshoe kidney is a congenital disorder, affecting about 1 in 500 children, in which a persons two kidneys fuse together to form a horseshoe-shape. ...


External links

Arteries edit

pulmonary - aorta - ascending aorta - aortic arch - brachiocephalic - carotid - common carotid (Gray's s141-Gray's s143) SUNY Downstate Medical Center is Brooklyns only academic medical center. ... Section of an artery An artery or arterial is also a class of highway. ... Grays Fig. ... The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ... The arch of the aorta, and its branches. ... The arch of the aorta, and its branches. ... The brachiocephalic artery (or trunk) is an artery of the mediastinum that supplies blood to the right arm and the head. ... In human anatomy, the carotid artery is a major artery of the head and neck. ... Left Common Carotid Artery- One of three arteries that originate along the aortic arch. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


EXTERNAL CAROTID: superior thyroid - lingual - facial - occipital - stylomastoid - superficial temporal artery - maxillary - middle meningeal | (Gray's s144) The carotid artery is a major artery of the head and neck. ... The superior thyroid artery arises from the external carotid artery just below the level of the greater cornu of the hyoid bone and ends in the thyroid gland. ... The lingual artery arises from the external carotid between the superior thyroid and external maxillary; it first runs obliquely upward and medialward to the greater cornu of the hyoid bone; it then curves downward and forward, forming a loop which is crossed by the hypoglossal nerve, and passing beneath the... The Facial artery is an artery that supplies blood to several cranial structures. ... occipital artery ... The Stylomastoid Artery enters the stylomastoid foramen and supplies the tympanic cavity, the tympanic antrum and mastoid cells, and the semicircular canals. ... Arteries of the neck - right side. ... The maxillary artery is the larger of the two terminal branches of the external carotid artery. ... The middle meningeal artery is typically the first branch of the first part (retromandibular part) of the maxillary artery; one of the two terminal branches of the external carotid artery. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


INTERNAL CAROTID: ophthalmic - retinal - middle cerebral | (Gray's s146) The carotid artery is a major artery of the head and neck that supplies blood to the head and neck. ... The opthalmic artery is a branch of the internal carotid artery which supplies branches to supply the eye and other structures in the orbit: Central retinal artery Supraorbital artery Supratrochlear artery Lacrimal artery Dorsal nasal artery Short posterior ciliary arteries Long posterior ciliary arteries Posterior ethmoidal artery Anterior ethmoidal artery... The retinal artery or central retinal artery comes off the ophthalmic artery, running inferior to the optic nerve within its dural sheath to the eyeball. ... The middle cerebral artery (MCA) is one of the three major arteries that supplies blood to the brain. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


CIRCLE OF WILLIS: anterior cerebral - anterior communicating - posterior cerebral - posterior communicating | (Gray's s147) Circle of Willis in the human brain. ... The anterior cerebral artery supplies oxygen to most medial portions of frontal lobes and superior medial parietal lobes. ... The arterial circle and arteries of the brain. ... The arterial circle and arteries of the brain. ... The arterial circle and arteries of the brain. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


SUBCLAVIAN: vertebral - anterior spinal - posterior inferior cerebellar - internal thoracic - superior epigastric - basilar | ((Gray's s148) The subclavian artery is a major artery of the upper thorax that mainly supplies blood to the head and arms. ... The vertebral arteries are branches of the subclavian arteries. ... In human anatomy, the anterior spinal artery is the blood vessel that supplies the anterior portion of the spinal cord. ... The posterior inferior cerebellar artery (PICA) is one of the three main arterial blood supplies for the cerebellum. ... Right internal thoracic artery and its branches. ... Superior epigastric artery, internal thoracic artery and inferior epigastric artery. ... The basilar artery is one of the arteries which the brain supplies with oxygen-rich blood. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


AXILLA: axillary (lateral thoracic - subscapular - thoracoacromial - dorsal scapular) - brachial - radial - ulnar - posterior interosseous | (Gray's s149-Gray's s152) The armpit (or axilla) is the area on the human body directly under the area where the arm connects to the shoulder. ... Axillary artery and its branches - anterior view of right upper limb and thorax. ... Lateral thoracic artery and the axillary artery, with its other branches - anterior view of right upper limb and thorax. ... Axillary artery and its branches - anterior view of right upper limb and thorax. ... The thoracoacromial artery (a. ... The Dorsal scapular artery (or descending scapular artery) is a blood vessel which supplies the latissimus dorsi, levator scapulae, rhomboids, and trapezius. ... The brachial artery is a blood vessel of the upper arm. ... Arteries of the right forearm - anterior view. ... Arteries of the right forearm - anterior view. ... The dorsal interosseous artery (posterior interosseous artery) is an artery of the forearm. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


DESCENDING AORTA: thoracic aorta - bronchial - abdominal aorta - celiac artery (left gastric - hepatic - common hepatic - gastroduodenal - gastroepiploic - splenic) - mesenteric (superior - inferior) - marginal - renal | (Gray's s153-Gray's s154) The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ... The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ... Bronchial Artery The bronchial arteries supply nutrients and oxygen to the root of the lungs, the supporting tissues of the lungs, and the visceral pleura of the lungs. ... AORTA can also mean always-on real-time access, referring to WAN computer networks. ... celiac artery ... The left gastric artery arises from the coeliac trunk, and runs along the superior portion of the lesser curvature of the stomach, while the right gastric artery supplies the inferior portion. ... Hepatic artery is an artery that distributes blood to the liver, pancreas and gallbladder as well as to the stomach and duodenal portion of the small intestine. ... Branches of the celiac artery - stomach in situ. ... Branches of the celiac artery. ... Branches of the celiac artery. ... Branches of the celiac artery. ... The superior mesenteric artery arises from the anterior surface of the aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the duodenum and pancreas to the left colic flexure. ... Frontal view of the abdominal aorta and the territory supplied by the inferior mesenteric artery. ... Human kidneys viewed from behind with spine removed The renal arteries normally arise off the abdominal aorta and supply the kidneys with blood. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


ILIAC/FETAL: common iliac - internal iliac - internal pudendal - external iliac - inferior epigastric - artery of Adamkiewicz - umbilical | (Gray's s155-Gray's s156) In human anatomy, iliac artery refers to several anatomical structures located in the pelvis: Common iliac artery - forms at terminus of the aorta. ... Bifurcation of the aorta and the right iliac arteries - side view. ... Bifurcation of the aorta and the right iliac arteries - side view. ... Internal pudental artery is the terminal branch of the anterior trunk of the internal iliac artery which supplies the external genitalia. ... Bifurcation of the aorta and the right iliac arteries - side view. ... Right inferior epigastric artery - view from inside of abdomen. ... In human anatomy, the Artery of Adamkiewicz, also Adamkiewicz artery, major anterior segmental medullary artery and great anterior segmental medullary artery, is the largest anterior segmental medullary artery. ... Umbilical arteries carry deoxygenated blood from the fetus to the placenta in the umbilical cord. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


LEGS: femoral - profunda femoris - popliteal - anterior tibial - dorsalis pedis - posterior tibial - peroneal | (Gray's s157-Gray's s162) Shaved female legs In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis. ... Femoral artery and its major branches - right thigh, anterior view. ... The profunda femoris artery (also known as the deep femoral artery, or the deep artery of the thigh) is a branch of the femoral artery that, as its name suggests, travels more deeply (posteriorly) than the rest of the femoral artery. ... Arteries of the lower limb - posterior view. ... Anterior tibial artery and the muscles and bones of the leg - anterior view of right leg. ... In anatomy, the dorsalis pedis artery of the lower limb carries blood to the dorsal surface of the foot, from the anterior tibial artery. ... Arteries of the lower limb - posterior view. ... Arteries of the lower limb - posterior view. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
Chapter 30: Blood vessels, lymphatic drainage and nerves of the abdomen (2919 words)
The external iliac artery descends in the iliac fossa and passes posterior to the inguinal ligament to become the femoral artery.
The gonadal arteries arise inferior to the renal arteries (the gonads develop near the kidneys) and are either testicular or ovarian in distribution.
Vagal fibers enter the celiac and superior mesenteric plexuses and are distributed to the derivatives of the foregut and midgut: stomach, liver, pancreas, and intestine as far as the left colic flexure.
Chapter 8 - Section 3: First Principles of Gastroenterology (1374 words)
The blood flow to the splanchnic organs is derived from three main arterial trunks: the celiac, the superior mesenteric artery and the inferior mesenteric artery.
The celiac artery supplies blood to the foregut (stomach and duodenum), the superior mesenteric artery supplies blood to the midgut (duodenum to transverse colon), and the inferior mesenteric artery is responsible for blood to the hindgut (transverse colon to the rectum).
The superior mesenteric and inferior mesenteric systems are joined by the arch of Riolan and the marginal artery of Drummond, vessels that connect the middle colic artery (a branch of the superior mesenteric artery) and the left colic artery (a branch of the inferior mesenteric artery).
  More results at FactBites »

 
 

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