Principles of Human Physiology is an undergraduate human physiology textbook recommended for health science students especially students taking A&P 2 preparing for nursing program. Topics covered range from endocrine, blood, cardiovascular - heart, circulatory system, lymphatic and immune systems, respiratory system, digestive system, metabolism, urinary and reproductive systems, pregnancy and development, inheritance and genetics. This book employs a simplified format that enables students to understand the complex physiology concepts of the human body. It is "physiology made easy."