Skeletal Syste1 - Skeletal System INTRODUCTION The skeleton...

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Skeletal System INTRODUCTION The skeleton serves as a support or framework of the human body. It is a combination of bones joined together. FUNCTIONS OF THE HUMAN SKELETON 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. DEVELOPMENT OF AN INDIVIDUAL BONE a. General. The human skeleton is “preformed” in the early fetus, but the early form is not of bony material. There are two types of bones according to their preformed basis: membranous bones and cartilage bones. These are in the location and have the general shape of the adult bones they will later become. (1) Membranous bones. The outer skull bones are an example of membranous bones. Osteoblasts
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Skeletal Syste1 - Skeletal System INTRODUCTION The skeleton...

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