Find out about the different stages of a human ... muscles work? Find out how our muscles help us move by contracting and relaxing. What is the digestive system? Discover how the food gets into ...

These are nutrients that the human body needs in relatively ... It plays a vital role in muscle and bone strength, immune support, and cellular function. A typical U.S adult should consumer ...

This short film is from the BBC series, Biological processes of the human body. You could get a skeleton model and connect rubber bands to the bones in order to demonstrate how one muscle ...

For years, TRISH has supported research projects and studies that aim to solve the challenges of human exploration ... cardiovascular system functions well in space, the body does not require as much ...