the bones and muscles (the bones and muscles)
The Bones and Muscle
the bones and muscles (the bones and muscles)
bones Every movement we make depends on the coordinated interaction of the muscles, bones, ligaments and tendons that make up the musculoskeletal system. The 206 major bones that form the skeleton are the body scaffolding, but they do much more than provide simple support. The skull and spine protect the brain and spinal cord, while the rib cage and pelvis shield other vital organs. the bones and muscles (the bones and muscles)
bones Every movement we make depends on the coordinated interaction of the muscles, bones, ligaments and tendons that make up the musculoskeletal system. The 206 major bones that form the skeleton are the body scaffolding, but they do much more than provide simple support. The skull and spine protect the brain and spinal cord, while the rib cage and pelvis shield other vital organs. the bones and muscles (the bones and muscles)
the bones and muscles (the bones and muscles)
bones The joints-those elegantly engineered intersections where bones meet and are bound together by ligaments-permit the wide range of movements of which we are capable. The bones also serv as living storehouses for minerals, constantly releasing and reabsorbing calcium and other essential elements. And inside certain bones lies the red marrow that manufactures most of our new blood cells. the bones and muscles (the bones and muscles)
the bones and muscles (the bones and muscles)
bones The 650 or so muscles in the body are grouped into three main categories. Skeletal muscles make it possible for us to move. They are anchored to two or more bones, usually by means of tendons, and most of them work in pairs. When triggered by nerve impulses, one muscle contracts, its counterpart relaxes, and the bones they are attached to move and so do we. Unlike the skeletal muscles, which are under our consious control, the cardiac muscles of the heart and the visceral muscles of the stomach and other internal organs function automatically.
the bones and muscles (the bones and muscles)
bones Because of the stresses to which they are subjected, bones and muscles are prone to various injuries and problem: muscles tear and tendons become inflamed; osteoporosis can make bone brittle; arthritis can devastate joints-and millions of lives are distruped each year by back pain. In this section you will learn what can go wrong with the musculoskeletal system, how to deal with problems, and what you can do now to avoid trouble later on.
the bones and muscles (the bones and muscles)
the bones and muscles (the bones and muscles)
the bones and muscles (the bones and muscles)
