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Fluid compartments of the body. Volumes are for an average 70-kg (154-lb) person. TBW = total body water; ECF = extracellular fluid.

Vander et al.: Human Physiology: The Mechanism of Body Function, Eighth Edition

A Framework for Human Physiology CHAPTER ONE

A Framework for Human Physiology CHAPTER ONE

specific components of the body's control systems: nerve cells, muscle cells, and gland cells.

Part 3 describes the coordinated functions (circulation, respiration, and so on) of the body, emphasizing how they result from the precisely controlled and integrated activities of specialized cells grouped together in tissues and organs. The theme of these descriptions is that each function, with the obvious exception of reproduction, serves to keep some important aspect of the body's internal environment relatively constant. Thus, homeostasis, achieved by homeostatic control systems, is the single most important unifying idea to be kept in mind in Part 3.


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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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