This document compares the major organs of the digestive and respiratory systems to components of a school. It describes the mouth as being like the school doors, the esophagus as the hallways, and the stomach as the classrooms. The liver is equated to a teacher and the small intestine to a coat room. The large intestine and rectum are then compared to backpacks and intercoms, respectively. In the respiratory system comparison, the trachea is likened to a water intake, the bronchi to splitter pipes, bronchioles to smaller splitter pipes, and alveoli to taps and toilets.