Wikibooks, 2007. — 432 p.
Human physiology is the study of the functioning of the normal body, and is responsible for describing how various systems of the human body work. Explanations often begin at a macroscopic level and proceed to a molecular level. In 1926, Fritz Kahn portrayed the body as a complex chemical plant, as seen in the painting on the right. This textbook 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.