Human Body

Blood and Circulation

What are the primary functions of the lymphatic system?

The lymphatic system consists of the lymphatic vessels, lymph, and lymphoid organs. It is responsible for maintaining proper fluid balance in tissues and blood, in addition to its role defending the body against disease-causing agents. The primary functions of the lymphatic system are: 1) to collect the interstitial fluid that consists of excess water and proteins and return it to the blood; 2) to transport lipids and other nutrients that are unable to enter the bloodstream directly; and 3) to protect the body from foreign cells and microorganisms.


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