1. The Skeletal System Structure of Bone

2. Skeletal System The entire framework of bone and their associated cartilages Each individual bone is considered an organ because it is composed of several different tissues working together.

3. Osteology The study of the structure of bone and the treatment of bone disorders

4. Orthopedics The branch of medicine that deals with the preservation and restoration of bone

5. Functions of Bone and The Skeletal System Bone tissue and the skeletal system perform several basic functions: Support Protection Movement Mineral Storage Hemopoiesis Energy Reserve

6. Support Provides a framework for the body by supporting soft tissues and providing points of attachment for most skeletal muscles

7. Protection Protects many internal organs from injury

8. Movement Skeletal muscles attach to bones. When the muscle contracts, it pulls the bones to create desired movements

9. Mineral Storage & Homeostasis Bone tissue stores minerals such as calcium and phosphorus. Bone can release these minerals into the blood to maintain critical concentrations and maintain homeostasis

10. Production of Blood Cells Red Bone Marrow – a connective tissue within certain bones that produces RBC’s, WBC’s and platelets. Hemopoiesis – the process of making blood cells

11. Triglyceride Storage Yellow bone marrow found in certain bones stores triglycerides in adipocytes. These are a potential energy reserve for the body.

12. TYPES OF BONES There are 6 main types of bones: Long Short Flat Irregular Sutural Sesamoid

13. Long Bones Bones that are greater in length than they are in width Have 2 main parts Body (shaft); Ends (extremities) Ex: Arms, Legs, Fingers, Toes

15. Short Bones Bones that are just as wide as they are long Ex: Wrist and Ankle

17. Flat Bones Thin and Flat (duh) Used for protection and muscle attachment Ex: cranial, sternum, ribs, scapula

19. Irregular Bones Complex shapes that cannot be classified into any of the other categories EX – Vertebrae, Facial bones

21. Sutural Bones Small bones that form between joints in the cranium. The number can vary between individuals.

23. Sesamoid Bone Bone that develops in a tendon where there is a lot of pressure