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Lymphatic System
A network of vessels and nodes that circulates lymph fluid, filters foreign substances, and coordinates immune responses.
Key Facts
- It functions similarly to a secondary circulatory system that transports lymph fluid throughout the body.
- Lymph nodes act as processing centers where immune cells encounter and neutralize foreign proteins and pathogens.
- The system interfaces with the bloodstream at multiple points to expand immune surveillance coverage.
- It includes lymphoid tissues distributed in major organs like the spleen, liver, and gastrointestinal tract.