What Are Lymph Nodes? Lymph nodes are small bean-shaped organs in our body that are part of the lymphatic system. They are distributed throughout the body and are found in groups such as the neck, armpits, groin, and abdomen. Lymph nodes play a vital role in the immune system, helping to filter bodily fluids and fight infections. 

LYMPH NODES:

Structure of Lymph Nodes Lymph nodes are composed of lymphatic tissue, which contains various types of immune cells, such as lymphocytes. They have a bean-shaped structure with connective tissue surrounding the organ. Inside lymph nodes, there are areas called lymph sinuses, where fluids and immune cells are filtered. 

Functions of Lymph Nodes Filtration of Lymphatic Fluids One of the primary functions of lymph nodes is the filtration of lymphatic fluids. The lymphatic system transports bodily fluids, known as lymph, from peripheral tissues to the heart. During this process, lymph nodes filter the lymph, removing foreign substances such as bacteria, viruses, tumor cells, and other debris. 

Production of Immune Cells Lymph nodes are also sites for the production and activation of immune cells. Lymphocytes, a type of immune cell, are produced and matured within lymph nodes. These cells play a key role in the immune response, fighting infections, and coordinating the immune system’s response. 

Importance of Lymph Nodes in the Immune System Lymph nodes play a fundamental role in the immune system, serving as control and coordination points for the immune response. Through the filtration of fluids and the activation of immune cells, lymph nodes help detect and combat infections, reducing the spread of pathogens within the body. 

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