1. The Skeletal System Chapter 1, section 2

2. Bones The average adult has 206 bones. Give support Protect Move with muscles Store minerals and make blood help maintain homeostasis

4. Bone Bone is living material –Made from minerals and connective tissue How do the minerals get there?  Osteoblast specialized cells that deliver minerals to bones

5. Compact bone No visible openings

6. Spongy Bone Have a lot of open spaces Provides most of the support and strength for the bone

7. Marrow Stores fat in adult bone

8. Bone Growth  Most bone begins as cartilage tissue  Cartilage is replaced by bone over time.  Children have growth plates to allow bone to reach adult size.

9. Joints Place where 2+ bones meet. Allows for body movement when muscles contract.

10. Ligaments Strong “elastic” bands of connective tissues. Connect bones in a joint Many bones are “capped” with ligaments = cushions impact

11. Skeletal System Injury Dislocation

12. Skeletal System Injury

13. Homework Page 11: 3,4,6,7,& 8