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omental (o-ment'al), adjective omentum One of two double folds of PERITONEUM, the greater and lesser omenta, that hang down like aprons from the liver and stomach over the coils of small intestine. The omenta usually contain fat and are often effective in sealing down and localizing areas of inflammation of the peritoneum (PERITONITIS). Also known as the epiploon.
Omentum: A sheet of fat that is covered by peritoneum. The greater omentum is attached to the bottom edge of the stomach and hangs down in front of the intestines. The greater omentum is attached to the bottom edge of the stomach and hangs down in front of the intestines.
Omentum definition is - a fold of peritoneum connecting or supporting abdominal structures (such as the stomach and liver); also : a fold of peritoneum free at one end.
Medical definition of omental: of, relating to, or formed from an omentum.
Medical definition of greater omentum: a part of the peritoneum attached to the greater curvature of the stomach and to the colon and hanging down over the small intestine —called also caul, gastrocolic omentum.
the part of the lesser omentum attached to the liver. greater omentum. the double fold of peritoneum derived from the dorsal mesogastrium that extends from the greater curvature of the stomach over the floor of the abdomen like an apron; poorly developed in the horse and well developed in ruminants.
Anatomy and Structure of the Omentum. The omentum is a two-layered structure that is like a parachute, covering and surrounding the organs of the abdominal cavity. Its consistency is somewhere between that of lumpy linen and jello. The omentum is broken down into two parts, which in adults are mostly fused together.
omentum [o-men´tum] (L.) a fold of peritoneum extending from the stomach to adjacent abdominal organs. adj., adj omen´tal. gastrocolic omentum greater omentum. gastrohepatic omentum lesser omentum. greater omentum a peritoneal fold attached to the anterior surface of the transverse colon. lesser omentum a peritoneal fold joining the lesser curvature ...
The lesser omentum (small omentum or gastrohepatic omentum) is the double layer of peritoneum that extends from the liver to the lesser curvature of the stomach (hepatogastric ligament) and the first part of the duodenum (hepatoduodenal ligament).
The peritoneum is the serous membrane forming the lining of the abdominal cavity or coelom in amniotes and some invertebrates, such as annelids. It covers most of the intra-abdominal (or coelomic) organs, and is composed of a layer of mesothelium supported by a thin layer of connective tissue. This peritoneal lining of the cavity supports many of the abdominal organs and serves as a conduit for their blood vessels, lymphatic vessels, and nerves. The abdominal cavity (the space bounded by the vertebrae, abdominal muscles, diaphragm, and pelvic floor) is different from the intraperitoneal space (located within the abdominal cavity but wrapped in peritoneum). The structures within the intraperitoneal space are called "intraperitoneal" (e.g., the stomach and intestines), the structures in the abdominal cavity that are located behind the intraperitoneal space are called "retroperitoneal" (e.g., the kidneys), and those structures below the intraperitoneal space are called "subperitoneal" or "infraperitoneal" (e.g., the bladder).
The greater omentum (also the great omentum, omentum majus, gastrocolic omentum, epiploon, or, especially in animals, caul) is a large apron-like fold of visceral peritoneum that hangs down from the stomach. It extends from the greater curvature of the stomach, passing in front of the small intestines and doubles back to ascend to the transverse colon before reaching to the posterior abdominal wall. The greater omentum is larger than the lesser omentum, which hangs down from the liver to the lesser curvature. The common anatomical term "epiploic" derives from "epiploon", from the Greek epipleein, meaning to float or sail on, since the greater omentum appears to float on the surface of the intestines. It is the first structure observed when the abdominal cavity is opened anteriorly.