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In human anatomy, the mesentery is an organ that attaches the intestines to the posterior abdominal wall, consisting of a double fold of the peritoneum.It helps (among other functions) in storing fat and allowing blood vessels, lymphatics, and nerves to supply the intestines.
The mesenteries deposit calcium carbonate which forms a stony ridge, the septum, between each pair of mesenteries and builds the corallite, the cup in which the polyp sits. [6] Sea anemones, order Actiniaria, have at least eight complete mesenteries and a variable number of incomplete ones near the base. The functional significance of the ...
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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 31 January 2025. List of organ systems in the human body Part of a series of lists about Human anatomy General Features Regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine exocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors ...
It is divided into three parts: the duodenum, jejunum, and the ileum. The duodenum receives excretions from various organs such as the pancreas and spleen. The pancreas produces the hormone insulin, which helps regulate blood sugar. [4] [5] The second part is the jejunum, which is located in the middle of the small intestine. The final part of ...
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).
Intraperitoneal parts of the GI tract are covered with serosa. These include most of the stomach, first part of the duodenum, all of the small intestine, caecum and appendix, transverse colon, sigmoid colon and rectum. In these sections of the gut, there is a clear boundary between the gut and the surrounding tissue.
This article contains a list of organs in the human body. It is widely believed that there are 79 organs (this number goes up if you count each bone and muscle as an organ on their own, which is becoming a more common practice [1] [2]); however, there is no universal standard definition of what constitutes an organ, and some tissue groups' status as one is debated. [3]