Components of Lymph Nodes

The components of lymph node include:

• Capsule: The outer covering of a lymph node, composed of connective tissue, which helps maintain its structure and integrity.
• Cortex: The outer region of the lymph node, containing lymphoid follicles, where B cells proliferate and mature. It also has dendritic cells and macrophages involved in antigen presentation.
• Medulla: Contains medullary cords and medullary sinuses. Medullary cords contain B cells, T cells, plasma cells, and macrophages, while medullary sinuses serve as conduits for lymphatic fluid.
• Lymphatic Vessels: A network of vessels that transport lymphatic fluid containing immune cells, proteins, and waste products to and from the lymph node.
• Afferent Lymphatic Vessels: Vessels that bring lymphatic fluid containing antigens and immune cells into the lymph node for filtration and processing.
• Efferent Lymphatic Vessels: Vessels that carry filtered lymphatic fluid away from the lymph node to be returned to the bloodstream.
• Lymphoid Follicles: The lymph node cortex contains groups of B cells surrounded by a layer of T cells. They are sites of B cell proliferation, maturation, and antibody production in response to antigens.
• Sinuses: Spaces within the lymph node that allow for the flow of lymphatic fluid and facilitate interactions between immune cells.

Also Read: Difference Between T Cells And B Cells

Diagram of Lymph Nodes helps in understanding the complex structure as well as the important activities of the immune system components. The diagram of Lymph nodes in the body shows their location throughout the body. They function as centers for immune cell contact and coordination. It plays an important role in developing effective immune responses against infections, foreign particles, and abnormal cells. In this article, we will look into the labeled diagram of lymph nodes and also explain its essential components in brief.