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SKELETAL SYSTEM NOTES PART 1

SKELETAL SYSTEM NOTES PART 1. Copy this chart on the top 1/3 of your paper and write as many things as you can about the following terms. Skeleton Bones Skeletal System. THE SKELETAL SYSTEM - NOTES. Skeletal System Parts:. bones, cartilage, tendons, ligaments.

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SKELETAL SYSTEM NOTES PART 1

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  1. SKELETAL SYSTEM NOTES PART 1

  2. Copy this chart on the top 1/3 of your paper and write as many things as you can about the following terms Skeleton Bones Skeletal System

  3. THE SKELETAL SYSTEM - NOTES • Skeletal System Parts: • bones, cartilage, tendons, ligaments • Functions: • maintain body shape • protects organs • provides levers for movement • mineral storage • blood cell formation

  4. Skeletal System connective tissues: • living cells in a matrix LIVING CELLS MATRIX • bone cells • calcium, phosphorus, collagen • cartilage cells • collagen and ground tissue • tendons & ligaments • parallel collagen fibers

  5. Bone Classification by Shape • LONG BONE • EX: humerus

  6. SHORT BONE • EX: trapezoid (bone in wrist)

  7. FLAT BONE • EX: sternum

  8. IRREGULAR BONE • EX: vertebra

  9. SESAMOID BONE • patella (knee cap)

  10. Anatomical Features of Long Bones • DIAPHYSIS • shaft • EPIPHYSIS • end of the bone • EPIPHYSEAL PLATE (or EPIPHYSEAL LINE) • site of bone growth – bones grow from their ends epiphyseal plate epiphysis diaphysis

  11. MEDULLARY CAVITY • location: • in diaphysis • filled with yellow marrow (adipose tissue)

  12. PERIOSTEUM • outer covering of bone – tough connective tissue • contains blood vessels & nerves

  13. Anatomical Features of COMPACT BONE • location: diaphysis • solid matrix & tightly packed cells • made up of OSTEONS or HAVERSIAN SYSTEMS

  14. OSTEOCYTES • bone cells – supplied by Haversian Canals with blood • CANALICULI • tiny canals that connect osteocytes together • thin rings of bone that serve to anchor bone cells • LAMELLAE

  15. Anatomical Features of SPONGY BONE • bone is not really “spongy” or soft, it only “looks” spongy • Location: • epiphysis • made of TRABECULAE • interconnecting rods of bone

  16. spaces in trabeculae filled w/red marrow • no Haversian Canals • lighter than compact bone

  17. BONE MARROW • cells produced from within bones • red marrow • produces blood cells • yellow marrow • adipose tissue – stores fat (energy)

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