Lymph & lymphatic system

The lymphatic capillaries converge to form the collecting lymphatics which have both valves and smooth muscle, with walls

The immune system helps to fight infections and filters waste products Your lymph nodes may swell up during an infection Common causes of

skeletal system The lymphatic system includes: • lymphatic vessels that carry a fluid called lymph • organs where immune cells develop: o bone marrow o thymus

digestive system The contraction of your muscles becomes the pump that helps the fluid get around your body Exercise can help the lymphatic system flow more effectively and