With Principles of Human Anatomy, 13th Edition, biologists will find that visualizing human structure has never been clearer. Large and vibrant illustrations, the extensive use of dissected cadaver photographs, and detailed micrographs are carefully integrated with the crisp narrative. Coverage of clinical material is included. Biologists are also given the opportunity to explore structure from diverse perspectives and gain insights into the vital contributions that anatomical knowledge brings to the understanding of functions, diagnosis and treatment of disease.