“A unique textbook of physiology as it introduces each topic with Learning Objectives divided into Must Know and Desirable to Know categories. Applied aspects are highlighted in Application Box and the patient- and disease-related concepts are highlighted in Clinical Box. Important and useful facts are emphasized as Important Note(s). All important and complex information are structured and presented in a bulleted and point-wise format to make easy grasp of the topics and not to miss any of the relevant points. All the major concepts are simplified and summarized in the Flowcharts. All relevant and significant mechanisms are described with the help of easily drawable schematic diagrams and graphs. Important data and information are presented in a structured tabular format. All cellular and molecular mechanisms are supplemented with appropriate histological pictures. Substantial contribution of great scientists in the concerned field has been recognized as Scientists Contributed, which will be inspiring to all the budding physiologists. All topics end with a Chapter Summary having two parts: Key Concepts depicting central theme and Must Read/Know depicting all probable Long and Short Questions and Viva Questions for final exams. Multiple choice questions are given at the end of each chapter that will help in preparing for objective type tests, quiz competition, and PG Entrance/NEET Exams. All systems and topics have been thoroughly revised and updated with addition of 23 new chapters, mainly to accommodate more applied and clinical topics, based on the new curriculum of NMC, 2019 and to facilitate early clinical exposure. Early Clinical Exposure in Physiology has been described at the end as a separate chapter. Thus, this is a Comprehensive Textbook that has incorporated all the requirements of a medical student imparting knowledge and skill in the subject, acquiring all the ingredients needed to write the examination, and kindling the asp.”