Lymph nodes of the left colon: anatomy and functions
Lymph nodes are an important part of the immune system, helping to protect our body from infections and other harmful influences. They are located throughout the body, including the colon, where the left colonic lymph nodes (n. l. colici sinistri, pna) are located.
The anatomy of the left colonic lymph nodes is quite simple. They are located along the left colic artery, near the point of its intersection with the superior colon vein. Like other lymph nodes, they are composed of lymphoid tissue, which contains lymphocytes - cells capable of recognizing and destroying infectious agents.
The left colonic lymph nodes are part of the intestinal lymphatic system, which plays an important role in protecting the body from bacteria and other microorganisms in food. When microorganisms enter the intestine, they are absorbed by the lymphatic vessels and transported to the lymph nodes of the colon. Here they are processed by lymphocytes, which destroy infectious agents and prevent their spread in the body.
In addition to protective functions, the left colonic lymph nodes may also play a role in metabolism and immunoregulation. For example, they may be involved in regulating blood glucose levels and maintaining the balance of water and electrolytes in the body.
Although the left colonic lymph nodes can be involved in various diseases such as lymphoma or infectious diseases, they do not have specific functions that can be replaced. Therefore, maintaining their health and functionality is important for maintaining normal immune function of the body.
In conclusion, the left colonic lymph nodes play an important role in protecting the body from infections and other harmful influences. They are an important part of the intestinal lymphatic system and may play a role in metabolism and immunoregulation. Therefore, maintaining their health and functionality is important for maintaining normal immune function of the body.
Lymph node (l) is a peripheral accumulation of lymphoid tissue formed by processes of reticular cells and follicles. Lymphoid tissue is a collection of lymphatic accumulations of various origins. nodes Most often, the presence of one such accumulation is observed, the remaining lymph nodes are anatomically located nearby.
Colonic (n. colemi) are the sinuses of the colon - formations located on the sides of the colon in the abdominal cavity. The colon enters the opening of the peritoneum - the peritoneal collection of lymph, the so-called balance -, and the lymph from it flows into the corresponding lymphatic vessels and collects at the intestinal venous vessels. This lymphatic drainage, directed downwards and laterally, empties laterally into the nodular plexuses of the small intestine and lateral branches of the large intestine. There are several groups of lymph nodes located on the sides of the abdominal cavity: lower umbilical nodes, middle and upper transverse colon nodes, also located along the transverse colon, upper iliac and subcostal lymph nodes. The described lymphatic accumulations are not located around the intestinal wall itself, but outward, to the main layers of the pelvic fascia or to the internal serosal membranes of the intestinal wall itself. Intraperitoneal folds of the peritoneum are involved in the formation of node capsules. This is achieved due to mucous cisterns that give off lymphatic sinuses in the peritoneum. Along the intestines lie lymphatic channels connecting the hypogastrium