THE SKELETON SYSTEM

1. THE SKELETON SYSTEM

2. Skeletal System Structures: Bones, Cartilage, Ligaments, tendons Functions: Supports the body, protects internal organs, allows movement, stores mineral reserves, provides a site for blood cell formation

3. Bone Facts! • It is composed of 206 named bones of various shapes and sizes. • Strong bands of connective tissue called ligaments hold the bones together. • Between many of the bones there are pads of firm, smooth, slightly elastic connective tissue called cartilage. • The cartilage works to cushion the ends of the bones where they bump together at a joint. • Bones are alive and continue to grow until about age 25. They are hard due to the high concentration of certain minerals such as calcium and phosphorus. All of the minerals, which the body needs for bone growth or repair, are found in food.

4. Inside of Bones!

5. Joints • 2 Types • Immovable: do not permit movement • Examples: skull and fused bones like tail bone • Movable: permit movement depending upon the type of joints • Examples: elbow, hip, wrist, shoulder • Most of our joints are considered movable!

6. Types • hinge joints • found in knee and elbow • permit back and forth motion in only one direction • ball-and-socket joints • The hip and shoulder joints • They permit nearly a full range of motion • pivot joint • The joint at the base of the skull • It allows movement of the head in a circular motion • gliding joints • The joints of the wrist and ankle. • The many small bones found in the wrist and ankle move slightly over one another permitting movement to occur

7. ASIMO = Advanced Steps In Mobility http://asimo.honda.com/default.aspx