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 ...

The ensemble of skeletal muscles can be considered the largest metabolic and endocrine organ of the human body. The more than ...

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 ...

While humans lost this ability millions of years ago, new research suggests that these muscles may still serve a subtle but ...

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 ...