Body Parts - Internal complements the app Body Parts - Basic. This application describes internal organs and skeletal system(bones) in a human body. This application describes the basic internal organs ( brain, heart, liver, lung etc.) with a line or 2 detailing its functions. It also describes main bones associated with human body. There are fun question and answers for children to enjoy and refresh their learning. This app does not display ads or social icon's. This app does not have in app purchase.