This book has tried to explain difficult topics using self explained diagrams and flow charts besides some extra useful informations also given in box matters. The book provides comprehensive and up-to-date material for the syllabus on Human Physiology. This book will be of extremely informative for graduate and post graduate students as well as medical aspirants. This book can be used as text book, a reference book, a practical and practice book. Especial emphasis has been give on explaining all the systems in the body.