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SKELETAL SYSTEM

Learn about the functions of the skeletal system, including support and protection, body movement, blood cell formation, and storage of inorganic materials. Explore the organization of the skeletal system, the two main divisions (axial and appendicular), and the structure of long bones.

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SKELETAL SYSTEM

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  1. SKELETAL SYSTEM

  2. Functions of the Skeletal System Bones are made of OSSEOUS TISSUE Support and Protection Body movement Blood cell formation (bone marrow) - hematopoeisis Storage of inorganic materials                    (salt, calcium, potassium….)

  3. ORGANIZATION About 206 bones 2 Main Divisions – Axial & Appendicular

  4. Axial Skeleton Head, neck, trunk Skull Hyoid Bone Vertebral Column Thoracic Cage (ribs, 12 pairs) Sternum

  5. Hyoid Bone

  6. Limbs & Bones that connect to the • Pectoral Girdle (shoulders) • Pelvic Girdle (hips) Appendicular Skeleton

  7. Epiphysis • Diaphysis • Articular Cartilage • Periosteum BONE STRUCTURE - Long Bone

  8. Medullary Cavity – hollow chamber filled with bone marrow Red Marrow (blood) Yellow Marrow (fat) Endosteum – lining of the medullary Inside the Long Bone

  9. Compact (wall of the diaphysis) Spongy (cancellous, epiphysis) - red marrow Types of Bone Tissue

  10. Structure of a Long Bone Figure 6.3a-c

  11. * Assignment – Coloring of a Long Bone

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