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Group 8 Duncan, C.; Morando, A.; Robinson, R. Chapter 15: Integumentary, Skeletal, and Muscular Systems Lesson 2: The Skeletal System 8th Grade 13-14 Year Olds The Skeletal System What Does My Skeletal System Do? Structure Stability Movement Protection Structure-How We’re Put Together Axial (skull, spine, ribs, sternum, breastbone) Appendicular (shoulders, arms, legs, hands, hips, feet) What’s Inside Our Bones? Spongy Bone Marrow Cavity Compact Bone Cartilage Different Types of Bones Long Short Flat Irregular Cartilage A type of connective tissue Lines joints to cushion the bone and allow the joint to move easily without pain Helps form flexible portions of the nose and ear Joints Ball-and-Socket Pivot Ellipsoidal Hinge Practice What kind of joint is your knee? What about your hip? Elbow? Shoulder? Ligaments and Tendons Ligaments connect bone to bone Tendons connect muscle to bone Eating Your Way to Strong Bones Diet Milk is rich in calcium and high-quality protein. Nearly all U.S. milk has vitamins D and A added and it has magnesium and zinc. All of these vitamins and minerals help build strong bones. How do Healthy Bones Sound to You? Why Drink Milk? Could this happen to you? Work Your Bones Exercise Weight bearing exercise makes your bones strong and healthy it stimulates bone formation and strengthens the muscles connected to the bones Walk Your Way to Healthy Bones Problems of the Skeletal System Fractures Hairline Transverse Comminuted Osteoporosis What? A disease causing the bones to become very porous This makes bones prone to fractures and slow to heal Who? Most common in women following menopause More common in females Osteoporosis Scoliosis What? An abnormal lateral curvature of the spine Who? Scoliosis can affect anyone Why? Birth defect Nerve or muscle problems deterioration of the bony material (discs) that separate the vertebrae Joint Injuries Dislocation Torn cartilage Bunion Bursitis Arthritis Repetitive Motion Injury What? an injury or illness resulting from bodily motion which imposes stress or strain upon some part of the body due to the repetitive nature of a task Examples Carpal tunnel syndrome Gamer’s Thumb THE END!