The Human Body Major Systems & Organs - The Immune System And Lymphatic System

The human body is a wondrously complex machine made of flesh, bone, muscles, organs, blood vessels and highly specialized systems that function together to sustain life. This fascinating third part of The Human Body series examines the incredible "machine," from simple cells, to DNA, the body's building blocks of life, to the major systems and organs. This video looks at the immune system which helps to protect our body from bacteria, viruses and pathogens. The Lymphatic system does a similar job and helps our bodies to get rid of excess fluid and get rid of disease causing micro-organisms. The video also discusses how vaccines help protect us from dangerous diseases which used to kill many people in the past such as polio and rubella. The Human Body: Major Systems & Organs. Part 5