1. Group 8 Group 8 Duncan, C.; Morando, A.; Robinson, R. Duncan, C.; Morando, A.; Robinson, R. Chapter 15: Integumentary, Skeletal, and Muscular Systems Chapter 15: Integumentary, Skeletal, and Muscular Systems Lesson 2: The Skeletal System Lesson 2: The Skeletal System 8 th Grade 8 th Grade 13-14 Year Olds 13-14 Year Olds

2. The Skeletal System

3. What Does My Skeletal System Do? Structure Structure Stability Stability Movement Movement Protection Protection

4. Structure-How We’re Put Together Axial (skull, spine, ribs, sternum, breastbone) Axial (skull, spine, ribs, sternum, breastbone) Appendicular (shoulders, arms, legs, hands, hips, feet) Appendicular (shoulders, arms, legs, hands, hips, feet)

5. What’s Inside Our Bones? Spongy Bone Spongy Bone Marrow Cavity Marrow Cavity Compact Bone Compact Bone Cartilage Cartilage

6. Different Types of Bones Long Long Short Short Flat Flat Irregular Irregular

7. Cartilage A type of connective tissue A type of connective tissue Lines joints to cushion the bone and allow the joint to move easily without pain Lines joints to cushion the bone and allow the joint to move easily without pain Helps form flexible portions of the nose and ear Helps form flexible portions of the nose and ear

8. Joints Ball-and-Socket Ball-and-Socket Pivot Pivot Ellipsoidal Ellipsoidal Hinge Hinge

9. Practice What kind of joint is your knee? What kind of joint is your knee? What about your hip? What about your hip? Elbow? Elbow? Shoulder? Shoulder?

10. Ligaments and Tendons Ligaments connect bone to bone Ligaments connect bone to bone Tendons connect muscle to bone Tendons connect muscle to bone

11. Eating Your Way to Strong Bones Diet 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. 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. All of these vitamins and minerals help build strong bones.

12. How do Healthy Bones Sound to You?

13. Why Drink Milk? Could this happen to you? Could this happen to you? Could this happen to you? Could this happen to you?

14. Work Your Bones Exercise Exercise Weight bearing exercise makes your bones strong and healthy Weight bearing exercise makes your bones strong and healthy it stimulates bone formation and strengthens the muscles connected to the bones it stimulates bone formation and strengthens the muscles connected to the bones

15. Walk Your Way to Healthy Bones

16. Problems of the Skeletal System Fractures Fractures Hairline Hairline Transverse Transverse Comminuted Comminuted

17. Osteoporosis What? What? A disease causing the bones to become very porous A disease causing the bones to become very porous This makes bones prone to fractures and slow to heal This makes bones prone to fractures and slow to heal Who? Most common in women following menopause More common in females

18. Osteoporosis

19. Scoliosis What? What? An abnormal lateral curvature of the spine 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

20. Joint Injuries Dislocation Dislocation Torn cartilage Torn cartilage Bunion Bunion Bursitis Bursitis Arthritis Arthritis

21. Repetitive Motion Injury What? 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 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 Examples Carpal tunnel syndrome Carpal tunnel syndrome Gamer’s Thumb Gamer’s Thumb

22. THE END!