Lesson 1 - Your Body Systems

Target Language or Knowledge:

nervous system controls other body systems digestive system changes food into substances your body can use circulatory system moves oxygen and other substances to all the body cells respiratory system takes in oxygen and releases carbon dioxide skin protects your other body systems from germs and from losing water muscular system helps you move skeletal system supports your body and protects other organs tissue a group of the same kind of cells organ a body part made of diiferent kinds of tissues cell smallest working part of a living thing body system group of organs that work together to do a certain job