Each year in the United States, nearly 1.4 million patients present to the ED with hand and finger symptoms. A recent series of 1000 consecutive hand problems indicated that 42 percent had lacerations, 27 percent had contusions, 17 percent had fractures, and 5 percent had infections. Two-thirds of presenters were male and one-third were under 18 years old; one-third of the injuries occurred at home. The most common mechanism was blunt trauma (50 percent) followed by sharp object (25 percent).
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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.