TREND enterprises, Inc. T-38913 The Human Body Learning Charts Combo Pack, Set of 7 Clear design and detailed illustrations of key human body systems in this handy 7-chart set. Nerve; Cardiovascular; Reproductive-Endocrine-Excretory; Digestive; Skeletal; Respiratory; Muscular. Extra Value: Back of charts feature reproducible activities, subject information, and helpful tips. 17" x 22" size appropriate for classrooms as well as smaller workspaces & home use.