Lymphatic system:-

The lymphatic system removes excess fluid from the body’s tissue and returned in to the circulatory system. It also help the body to fight infections. It consists of lymph vessels, lymph nodes, and associated lymphoid organs such as the spleen and tonsils.  Lymph vessels form a network of tubes that extend all over the body. From lymph capillaries the smallest vessels-lymph flows in to larger vessels called lymphatics, which are studded with nodes. These modes are collection of lymph tissue that act where many scavenging white blood cells ingest bacteria and other foreign matter and debris. When an infections occurs, specialized white blood cells are released from the lymph nodes to fight the infections.