Firstly, it protects our body from different pathogenic infections and filters our blood from pathogenic agents that can essentially cause harm to our body and the cells of our body. And secondly, the Lymphatic system also maintains fluid homeostates. Specifically, what it does is it prevents the buildup of fluid from taking place inside the tissues of our body. Now, to see exactly what we mean by that, let's take a look at the following diagram. This diagram describes the cells of some particular tissue and the cells are shown in brown. It also describes the capillary system that is found within our tissue.