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Efficiency

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Bones
Bone Formation
Efficiency
Genetic Disorders
Malfunctions
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Muscles
Efficiency
Genetic Disorders
Malfunctions
Muscle Cell
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Fun Facts
Work Cited

Skeletal System

Bones provide levers, which are found on a fixed point. Levers are rigid rods that provide movement for your body. Bones reserve minerals that are important to some of our body processes. In the bone there is a network of tubes called Haversian Canals that contain blood vessels and nerves. The blood vessels carry oxygen and nutrients to the bone. The spongy bone adds strength. However, it doesn’t add mass to it. Osteoclasts remodel the bones. The bone marrow produces red and white blood cells and platelets. Cartilage is a protective tissue that contains protein fibers and relies on the vessels for the nutrients. A process called ossification replaces bone cartilage when it’s damaged and begins to form seven months before a baby is born. Cartilage is found at flexible parts, the tip of your nose, in the external part of your ear, where the ribs attach to your sternum and allows your rib cage to move when you breath in and out. Joints are freely movable, which enables us to bend our arms and legs. Ligaments hold our bones together in a joint.

2006 Aislinn, Ariel & Amanda