The lymphatic system is a network of vessels, tissues, and organs that work to eliminate waste and toxins from the body. It plays an important role in immunity and is considered a subsection of the circulatory system.
The lymphatic system transports lymph. Lymph is a fluid that contains interstitial fluid, white blood cells, antibodies, and lymphocytes. The lymphatic systems works to transport these valuable immune cells to sites of the body that need it, which protects you from disease and infection. It also functions as a drainage system, ridding your body of excess fluid, waste, and harmful foreign substances.