The Lymphatic System

• lymph moves slowly through lymph vessels by the muscular walls of the vessels and by generated body movements pressing on the vessels and by general body movements pressing on the vessels
• lymph noes contain large numbers of white blood cells
• lymph nodes fight infection in 2 ways - filter bacteria and other harmful material and mature and store large numbers of lymphocytes
• the spleen, thymus, adenoids and tonsils are all part of the lymphatic system
• function - to collect tissue fluid and return it to the blood
• function - to defend the body against infection
• function - to absorb and transport fatty acids and glycerol
• to help with hearing and balance (the inner ear contains lymph)