Decompositional changes are dependent upon the environment. At moderate temperatures, decompositional changes will not occur for a day or two. Then rigor passes, and the body begins to swell and discolor, hair slips off, and marbling forms. By this time, decomposed blood and body fluids come out of the body orifices (called purging). After weeks or months, skeletonization takes place. Occasionally, bodies may decompose more in one part of the body than the other because of injuries, amount of clothing, or intrusion by insects and animals.
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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.