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Mesentery has been known for thousands of years, however it was unclear whether mesentery is a single organ or there are several mesenteries. [ 20 ] [ better source needed ] The classical anatomical description of the mesocolon is credited to British surgeon Sir Frederick Treves in 1885, [ 21 ] although a description of the membrane as a single ...
Portions of the gut tube and its derivatives are suspended from the dorsal and ventral body wall by mesenteries, double layers of peritoneum that enclose an organ and connect it to the body wall. Such organs are called intraperitoneal, whereas organs that lie against the posterior body wall and are covered by peritoneum on their anterior ...
The spleen is the largest lymphoid organ in the body but has other functions. [23] It breaks down both red and white blood cells that are spent. This is why it is sometimes known as the 'graveyard of red blood cells'. [23] A product of this digestion is the pigment bilirubin, which is sent to the liver and secreted in the bile.
Mesenteries are folds of peritoneum that are attached to the walls of the abdomen and enclose viscera completely. They are supplied with plentiful amounts of blood . The three most important mesenteries are mesentery for the small intestine , the transverse mesocolon , which attaches the back portion of the colon to the abdominal wall, and the ...
The mesothelium is a membrane composed of simple squamous epithelial cells of mesodermal origin, [2] which forms the lining of several body cavities: the pleura (pleural cavity around the lungs), peritoneum (abdominopelvic cavity including the mesentery, omenta, falciform ligament and the perimetrium) and pericardium (around the heart).
Surgical removal of the stomach is called a gastrectomy, and removal of the cardia area is a called a cardiectomy. "Cardiectomy" is a term that is also used to describe the removal of the heart . [ 49 ] [ 50 ] [ 51 ] A gastrectomy may be carried out because of gastric cancer or severe perforation of the stomach wall.
It can cause stomach aches, gas, constipation, diarrhea and a whole host of other wonderful conditions. Some evolutionary scientists say that the human mind hasn't yet evolved to handle our not ...
The coordinated contractions of these layers is called peristalsis and propels the food through the tract. Food in the GI tract is called a bolus (ball of food) from the mouth down to the stomach. After the stomach, the food is partially digested and semi-liquid, and is referred to as chyme.