Did you know that the average surface area of an adult's lungs in about 750 square feet 70 square meters The average adult takes 12 to 20 breaths per minute at rest.
This series guides readers through the fascinating inner workings of the human body. The human body contains several complex systems that work closely together to support life and allow the body to function properly. Each book explores the characteristics and interactions of these systems their makeup and their importance. AV2 media enhanced.