Human Body

The human body is a complex living organism made up of trillions of cells. The body includes several major organ systems, each composed of various organs and tissues that work together to do specific jobs. This unit focuses on these body systems: circulatory, digestive, excretory, muscular, nervous, reproductive, respiratory, and skeletal. Learn the major organs of our body systems and how they work to keep us alive and healthy. Other materials inform students about tears, burps, scabs, and other topics about the human body.