Which Lymphoid Organ Filters Lymph?

The lymphoid organs that filter lymph are lymph nodes.

Lymph Nodes: The Body's Filters

Lymph nodes are small, bean-shaped structures found throughout the body along lymphatic vessels. Their primary function is to filter lymph, a fluid that circulates through the lymphatic system.

Here's a closer look at how lymph nodes act as filters:

• Location: Lymph nodes are strategically located along lymphatic vessels, allowing them to intercept lymph as it flows through the body.
• Structure: These nodes contain specialized cells, including lymphocytes (immune cells), that identify and neutralize harmful substances.
• Filtration Process: As lymph passes through a lymph node, pathogens, cellular debris, and other foreign particles are trapped and removed by these immune cells. This filtering action helps to prevent the spread of infections and maintain overall health.
• Immune Response: Lymph nodes are not just filters; they are also crucial sites for immune responses. When antigens are detected, the immune cells within the node become activated, initiating a targeted attack against the threat.

The reference provided clearly states: "Lymph nodes are small bean-shaped clumps of tissue found along the lymphatic vessels. The lymph nodes act as filters."

Summary of Lymph Node Function

Lymph nodes play a critical role in maintaining a healthy immune system. Their filtering action helps to keep our bodies free from infections and diseases.