Book is designed to impart fundamental knowledge on the structure and functions of the various systems of the human body. It also helps in understanding both homeostatic mechanisms. The subject provides the basic knowledge required to understand the various disciplines of pharmacy. This book contains Theoretical point based on the Pharmacy Council of India prescribed syllabus and after each Chapter MCQs with Keys, Short Q. and Long Q. with answer is given for Exercise. Book designed according to the curriculum of undergraduate courses in pharmacy by Pharmacy Council of India New Syllabus useful All over India. We sure this book will be found very useful by B. Pharm. students, Professor and Pharma industry.