The skeletal, muscular, digestive, respiratory, circulatory, integumentary, and nervous systems are all addressed in Human Body Systems by Rory's School Essentials. A simple and straightforward explanation of each system is given in three slides. The first slide lists the body parts that make up each system. The first slide also gives an explanation of the function(s) that the system performs for the human body. The second slide is a diagram of the body system with scientific labeling. The third slide gives the reader ideas for caring for each body system in order to maintain a healthy body overall.