The human body accumulates all sorts of waste and toxins that it must remove to stay healthy. The lymphatic system is the network of various organs, tissues, and vessels that help keep the body clean. It has the additional duty of absorbing fatty acids and fats for nutrients. Though it is part of the circulatory system, the lymphatic system has several key differences. Instead of circulating blood, the lymphatic system transfers a liquid called lymph, which performs various helpful tasks including returning proteins to the bloodstream and transporting bacteria to be destroyed.


1. Main Components

The lymphatic system contains primary lymphoid organs, secondary lymphoid organs, and tertiary lymphoid tissue. The primary lymphoid organs generate white blood cells called lymphocytes. The secondary lymphoid organs maintain these cells and use them in the adaptive immune response to fight off infections, diseases, and tumors. These cells appear in the tertiary lymphoid tissue, though in smaller numbers. Typically, this tissue only assists in the immune response to fight against antigens that cause severe inflammation.

what is the lymphatic system

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