"Brain Ear Genetics Heart Kidneys and Bladder Respiratory System Sex Development Skeleton Subscribe to our e-newsletter! e-mail About How the Body Works This is an animated, interactive atlas of child anatomy and physiology. Caregivers can use the pictures and animations in How the Body Works to help parents and families see and understand how organs normally work, and how they are affected by illness. Parents can then review this material wherever they have access to the Internet. "