We are pleased to present “Human Anatomy, Physiology and Pathophysiology I (Theory)”, a comprehensive textbook designed to provide students with a strong foundation in the fundamental concepts of human body structure, function, and disease processes. This book has been developed to meet the academic needs of students in pharmacy and allied health science programs.

A clear understanding of anatomy and physiology is essential for healthcare professionals, as it forms the basis for understanding normal body functions and the pathological changes associated with various diseases. Keeping this objective in mind, the content has been presented in a simple, systematic, and student-friendly manner. The book covers key topics such as the organization of the human body, cell structure and function, tissues, organ systems, homeostasis, and basic pathophysiological concepts.

Special care has been taken to ensure accuracy, clarity, and relevance to the prescribed curriculum. Illustrations, tables, and concise explanations have been incorporated to facilitate effective learning and better retention of concepts.

We sincerely hope that this book will serve as a valuable resource for students, teachers, and healthcare learners. We welcome constructive suggestions from readers for the improvement of future editions.