The human skeleton serves the following functions:
a. Bodily Support. The skeletal system provides a framework for the human body.
b. Protection. The skeleton protects certain soft structures within the human body. An example is the skull, which surrounds the brain.
c. Motion. Muscles are attached to and move the bones. Bones provide leverage for motion.
d. Formation of Blood Cells (Hematopoiesis). Blood cells are manufactured in the red bone marrow, mainly found in flat bones.
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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.