What's the difference between mesentery and mesocolon?
Mesentery
Definition:
(n.) The membranes, or one of the membranes (consisting of a fold of the peritoneum and inclosed tissues), which connect the intestines and their appendages with the dorsal wall of the abdominal cavity. The mesentery proper is connected with the jejunum and ilium, the other mesenteries being called mesocaecum, mesocolon, mesorectum, etc.
(n.) One of the vertical muscular radiating partitions which divide the body cavity of Anthozoa into chambers.
Example Sentences:
(1) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
(2) Previous histological evidence of the uptake of these particles and their absorption across the gastrointestinal tract and passage via the mesentery lymph supply and lymph nodes to the liver and spleen was confirmed by analysis of tissues for the presence of polystyrene by gel permeation chromatography.
(3) The greatest problems appeared in diagnosing thrombosis of mesenterial vessels and acute appendicitis in cases with the retrocecal disposition of the vermiform process.
(4) The islets, 3 000 to 5 000, were transplanted to alloxan diabetic recipients, in a territory, preferentially with portal-hepatic drainage (mesentery and spleen).
(5) As revealed, hypophysectomy and adrenalectomy caused disturbances of vascular permeability in the mesentery.
(6) In numerous points of these plexuses, single adrenergic fibers or polyaxonal structures are observed to issue into nonvascular areas of the mesentery where after repeated dichotomic division they pass into the preterminal and terminal parts.
(7) In addition there was an associated hypertrophy of the lymph nodes in the ileal loop mesentery.
(8) These changes in density are thought to represent diffuse fat edema, most prominently in the mesentery because of portal hypertension.
(9) In the last three patients with unresectable adenocarcinoma of the distal part of the stomach and invasion of the intestinal mesentery, due to foreshortening of the latter, the proximal loop of the intestine would not reach the desired level of the stomach until this maneuver was performed.
(10) Mesenterial fibromatosis, also known as aggressive fibromatosis or desmoid tumor is generally associated with Gardner's syndrome but otherwise an extremely rare disease.
(11) Dose-dependent vasodilator responses to dopamine, isoprenaline, noradrenaline, 3-isobutyl-1-methylxanthine (IBMX) and sodium nitroprusside were obtained in isolated perfused mesentery preparations, taken from reserpine-treated rats of different ages.
(12) These cells were found in the intestitial tissue of the dorsal mesentery or in the genital ridge.
(13) We now show that the protection afforded by this immunization protocol is systemic and that animals can be protected against tumor growth in the cecum, lymphatics of the mesentery, liver and lung.
(14) PGCs were mainly found in the hindgut epithelium, some at the stage of separation from the endoderm, and others in migration through the mesenchyme of the dorsal mesentery between the primitive intestinal wall and the coelomic epithelium, including the coelomic angle.
(15) In those instances, the osmium-amine reacted not only in the outer surface of the mesentery, but also penetrated with no visible reaction all the way to the connective tissue where it was detected in the elastic layer.
(16) The perivascular protein contents, which corresponds besides arterioles to 40% and besides venules to 59% in comparison to the intravascular blood plasma, decreased in a comparison group under the osmotic influence of the perfusion liquid on the mesenterial plate.
(17) At operation, two localized tumors were found, one located in the jejunum approximately 20 cm distal to the ligament of Treitz, accompanied by perforation and another approximately 20 cm distal to the above lesion in the mesentery.
(18) It appears that in rat mesentery, impulses travelling via cholinergic, parasympathetic fibers innervating mast cells, cause mast cell swelling.
(19) In this situation, intense vascular spasm was seen and any light transmitted through the colon which fell on the small bowel mesentery caused a lethal ischaemic necrosis.
(20) They are formed on acetate-cellulose (AC) membranes implanted into the mice peritoneal cavity and into the mesentery after radiation and intraperitoneal injection of a donor's bone marrow.
Mesocolon
Definition:
(n.) The fold of peritoneum, or mesentery, attached to the colon.
Example Sentences:
(1) We have presented a case of internal herniation of small bowel through the sigmoid mesocolon in a pregnant woman.
(2) This complication may be avoidable by suturing the free end of the proximal jejunum to the root of the transverse mesocolon.
(3) Diagnosis in these cases has been difficult but in two patients with surgical marker clips applied to the transected fixed jejunum as well as to the adjacent mesocolon, diagnosis was made easier by the radiographic finding of separation of these clips.
(4) Corpuscles of the cat mesentery and mesocolon were used in all experiments.
(5) Type I was due to a kinked loop of jejunum where it passed through the mesocolon.
(6) The cause of stomal stenosis was classified into three groups; (1) transient stenosis due to stomal edema in 21 patients, (2) intestinal obstruction immediately adjacent to the stoma (kinking, invagination and volvulus) in 22, (3) organic stenosis of pathological origin (stomal ulcer, anastomotic leakage and strangulation by the proliferated mesocolon) in 14.
(7) Receptive fields were found over the bladder base or its peritoneal ligaments or both, on the uterus or broad ligament or both, on the colon or mesocolon or both, and in association with the ureter, vas deferens, prostate or pelvic fat pads.
(8) In addition to liposarcomas of the mesentery and the mesocolon, they observed some cases of liposarcoma localized in the omentum and the stomach; other abdominal localizations occurred sporadically.
(9) It would appear that carcinoma located in those segments of the human colorectum containing any portion of the mesocolon are more prone to metastasize into the liver.
(10) Other displayed ligaments are the smaller omentum, the gastrosplenic ligament, the splenopancreatic ligament, the phrenolienal and phrenocolonic ligaments, the mesocolon, the mesosigmoid, the mesentery and the broad ligaments.
(11) Among these is the variant known as retractile mesenteritis, which involves predominantly the mesentery of the small intestine and associated vessels; involvement of the mesocolon and the colon is less frequent.
(12) Once a diagnosis is made, operation with either reduction or resection of the area of intussusception should be carried out with refixation of the bowel to the mesocolon and reapplication of surgical marker clips.
(13) A triad of underlying factors predisposes to the development of the volvulus: a distal impediment (either organic or functional) to the evacuation of the bowel, a redundant bowel and mesocolon and a fixed point around which the bowel can twist.
(14) The obstruction was caused by: adhesion and kinking of the loop (7 cases), too long and mobile loops (6 cases) incorrect anastomosis (3 cases), torsion and stenosis in the mesocolonic slit (2 cases), internal hernia (1 case).
(15) Eight cases of hepatobiliary disease located adjacent to or within the perihepatic ligaments (peritoneal reflections surrounding the liver) with exophytic spread along these ligaments (three abscesses from cholecystitis, two bilomas, two hepatic abscesses, and one hematoma from a ruptured hepatocellular carcinoma, with 16 ligamentous lesions: five in the hepatoduodenal ligament, four in the ligamentum teres, three in the falciform ligament, two in the gastrohepatic ligament, one in the transverse mesocolon, and one in the duodenocolic ligament) were studied with sonography and computed tomography.
(16) Clear cell carcinoma was found in the sigmoid mesocolon of a 54-year-old woman, 6 years after the removal of all ovarian tissue.
(17) The modes of clinical presentation and management of patients with injuries to the mesentery, mesocolon and mesenteric vessels following blunt trauma are described.
(18) One was ossified soft tissue (gastrocolic ligament) with 1.5 x 1 x 0.8cm3 in size, and the other was cystic duplication of transverse colon in contact with beneath mesocolon.
(19) The anatomic distribution was as follows: liver (2 cases), spleen with gastric and pancreatic involvement (1 case), mesentery (1 case), right mesocolon (1 case), left mesocolon (1 case), and urachus (1 case).
(20) A 32-year-old woman underwent a conservative total excision of a leiomyosarcoma of the sigmoid mesocolon.