What is the Lymphatic System?
The lymphatic system is the network of vessels through which the lymph drains back to the blood. The main components of the lymphatic system are lymph, lymph nodes, lymph vessels, thymus, and the spleen. The fluid which circulates throughout the body is called the lymph. The tissue fluid that is drained to the lymphatic system is called the lymph. The lymph is rich with lymphocytes, which are the immune system cells. The lymph that is formed in the digestive system contains a lot of fat and is called chyle. The chyle is a milky white fluid. The lymph vessels carry lymph around the body. The lymph nodes are the small, bean-shaped organs, which filter harmful substances. They contain lymphocytes and macrophages as well. The major lymph nodes occur in tonsils, neck, groin, armpits, adenoids, and mediastinum. A swollen lymph node indicates a reaction to an infection. The maturation of the T cells occurs in the thymus. The thymus is located between the breastbone and the heart. The spleen is located in the upper left abdomen. It filters the defective red blood cells.
The lymphatic system cleanses the cellular environment. It drains the proteins and tissue fluid back to the circulation system. It also absorbs fat and fat-soluble vitamins from the digestive system and drains to the blood. Finally, the lymphatic system is involved in the defense of the body from pathogens. Difference Between Lymphatic and Immune System Lakna Panawala (2017)