Physiology is the study of the functions of the human body. In other words, the mechanisms by which the various organs and tissues carry out their specific activities are considered. Emphasis is often placed on the processes that control and regulate these functions. In order for the body to function optimally, conditions within the body, referred to as the internal environment, must be very carefully regulated. Therefore, many important variables, such as body temperature, blood pressure, blood glucose, oxygen and carbon dioxide content of the blood, as well as electrolyte balance, are actively maintained within narrow physiological limits.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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