Lymphatic fluid, also known as lymph, is a clear, pale yellow fluid that circulates through the lymphatic system. It is composed of water, proteins, fats, and white blood cells, primarily lymphocytes, which play a crucial role in the immune response. Lymphatic fluid helps to remove waste products, toxins, and excess fluids from tissues, maintaining fluid balance in the body. The lymphatic system consists of a network of vessels, nodes, and organs, including the spleen and thymus. As lymphatic fluid flows through this system, it passes through lymph nodes, where it is filtered and monitored for pathogens. This process is essential for protecting the body against infections and diseases.