150 likes | 230 Vues
Learn about the functions, structure, and health of the skeletal system. Understand bone development, joint health, and how to prevent injuries. Keep your bones strong and healthy with proper nutrition, exercise, and regular check-ups.
E N D
Body Systems The Skeletal System
Functions of the Skeletal System 1. Support 2. Protection 3. Movement 4. Storage and 5. Production of Materials
Development of Bones • Living structures – undergo change through life • Starts as CARTILAGE: tough supportive tissue, softer than bone • OSSIFICATION: Process of cartilage being replaced by bone • Minerals are deposited in developing bone
Structure of Bones Compact Bone Spongy Bone Red Marrow Yellow Marrow
Joints Allow for movement, protect bones from friction and force Some moveable, some immovable LIGAMENTS: strong, fibrous bands that hold together bones at joints
Keeping Healthy • Eating Well • Adequate intake of calcium and phosphorus • OSTEOPOROSIS: significant mineral loss causing weak bones • Potassium, magnesium, Vitamins A, C, and D • Exercising • Get plenty of weight bearing exercise – also helps prevent osteoporosis
Keeping Healthy • Avoid Bone Injuries • FRACTURES: any break in a bone
Ouch! Joe Theisman Soccer Player Breaks Leg
Keeping Healthy • Avoiding Joint Injuries • SPRAINS: an overstretched or torn ligament • Marcus Lattimore
Keeping Healthy • Avoiding Joint Injuries • DISLOCATIONS: the ends of the bones in a joint become forced out of their normal positions CJ Mosley - Hip Dwayne Wade - Shoulder Andrew Bogut - Elbow Baron Davis - Patella
Keeping Healthy • Avoiding Joint Injuries • Torn Cartilage: damage to cartilage between bones • Overuse Injuries: activities too strenuous or too often • Shoulders and knees
Keeping Healthy • Avoiding Joint Injuries • Arthritis
Keeping Healthy • Avoiding Joint Injuries • Bursitis
Keeping Healthy • Medical Check-ups • Check for SCOLIOSIS: abnormal curvature of the spine • Monitor height and weight to ensure normal growth