The thirteenth edition of the phenomenally successful Principles of Anatomy and Physiology continues to set the standard for the discipline. The authors have maintained a superb balance between structure and function and continue to emphasize the correlations between normal physiology and pathophysiology, normal anatomy and pathology, and homeostasis and homeostatic imbalances. The acclaimed illustration program has been extensively revised. The thirteenth edition is fully integrated with a host of innovative electronic media. No other text and package offers a teaching and learning environment as rich and complete.