Our bodies are super cool! There are so many things going on in it that we still don’t fully understand to this day. The mouth produces nearly one liter of saliva every day. Did you know that you shed nearly ten pounds of skin cells every year? In your lifetime, your heart will beat just about three billion (with a B) times. Some more numbers for you... The human body is made up of two-hundred and six bones working in concert with your three-hundred and twenty pairs of muscles.
The human body is vastly complex. The worksheets found below will help you understand basic human anatomy and physiology.