Overview Product Description Describes the nature and work of muscles, the different kinds, and the effects of exercise and other activities on them. Product Videos Custom Field Author Seymour Simon Binding Paperback Product Reviews Write a Review Write a Review × Muscle: Our Muscular System by Seymour Simon Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *