Lymphatic System - GCSE Biology Definition

The lymphatic system is a network in your body made up of small tubes called lymph vessels and tiny bean-shaped organs called lymph nodes. These vessels carry a clear fluid called lymph, which contains white blood cells, such as lymphocytes, that help fight infection. The lymphatic system helps to remove waste and extra fluids from your tissues, maintaining your body's fluid balance. It's an important part of your immune system, which is your body's defence against illness.