What is the major function of the lymphatic system?

The major function of the lymphatic system is to transport lymph and help maintain fluid balance in the body. The lymphatic system consists of a network of vessels, nodes, and organs that play a crucial role in the immune system and fluid regulation. Lymph is a clear fluid that contains white blood cells, which are essential for fighting infections and maintaining the body’s immune response.

Additionally, the lymphatic system collects excess interstitial fluid—fluid that is leaked from blood vessels into surrounding tissues—and returns it to the bloodstream. This process prevents fluid accumulation and helps to maintain normal blood volume and pressure. Therefore, the correct answer highlights the essential roles of lymph transport and fluid balance in maintaining overall health and homeostasis in the body.