All the chapters have been thoroughly revised and updated in this new edition to keep students abreast of recent advances in the field. Two new chapters have been added to acquaint students with the basics of both the topics: Introduction to Chemistry of Life, and Introduction to Nutrition. Must-know concepts and definitions are summarized in separate boxes for a quick revision. Embryological and histological facts of various structures have been added in different boxes to provide a new dimension for an integrated learning, and histological photomicrographs of various structures have been introduced for a relative learning by the students. All the figures have been redrawn and many new illustrations are added to assist in easy comprehension and retention of complicated information. Many new flow charts and tables have been added for a quick grasp of the important concepts in both the subjects.