The phenomenally successful Tortora's Principles of Anatomy and Physiology continues to set the discipline standard with the 15th edition. Designed for the 2-semester anatomy and physiology course, Tortora's Principles of Anatomy and Physiology combines exceptional content and outstanding visuals for a rich and comprehensive classroom experience. Enhanced for a digital delivery, the 15th edition, gives students the ability to learn and explore anatomy and physiology both inside and outside of the classroom.