by Susan J. Hall, PhD, FACSM Professor of Kinesiology and Applied Physiology University of Delaware Newark, Delaware Michelle A. Provost-Craig, PhD Associate Professor of Kinesiology and Applied Physiology University of Delaware Newark, Delaware William C. Rose, PhD Associate Professor of Kinesiology and Applied Physiology University of Delaware Newark, Delaware Anatomy & Physiology Essentials Publisher The Goodheart-Willcox Company, Inc. Tinley Park, IL www.g-w.com