The fourth edition of this book is thoroughly revised and updated in accordance with the competency-based undergraduate medical education curriculum as per guidelines of National Medical Commission (NMC). Following recent trends in medical education, this book has been profusely illustrated and designed in simple and easy-to-understand language for better retention of learnt concepts. Considering significant developments and advances in the subject, the book provides practical application of anatomical facts through its unique feature - Clinical Correlation boxes in chapters. * Extensive revision of each topic with suitable flowcharts and tables, which makes the learning and comprehension easier for students. . Additional information of higher academic value depicted in N.B. boxes to make reading more interesting for readers. . Interesting Mnemonics has been added for easy recall. . Golden Facts to Remember are useful for the candidates appearing in various entrance examinations like NEET, PGME, USMLE, PLAB, etc. . Clinical Case Studies: Emphasis has been given to provide anatomical basis of clinical cases through clinical vignettes for early clinical exposure at the end of each chapter. . 100+ New Illustrations: In the form of line diagrams, three-dimensional diagrams, clinical photographs, ultrasonographs, CT scans, MRIs have been incorporated to enhance visual representation. . Competency Codes: Addition of competency codes at the beginning of each chapter under Specific Learning Objectives and in text explanation provided throughout the book.