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The Skeleton System

The Skeleton System. Skeleton – provides a framework of support and protects internal organs Humans have about 206 bones Functions Provide support of the muscles, fat, and soft tissue Protect the internal organs Provide leverage for lifting and movement through the attachment of muscles

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The Skeleton System

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  1. The Skeleton System

  2. Skeleton – provides a framework of support and protects internal organs • Humans have about 206 bones • Functions • Provide support of the muscles, fat, and soft tissue • Protect the internal organs • Provide leverage for lifting and movement through the attachment of muscles • Produce blood cells • Store the majority of the body’s calcium supply

  3. Divided into 2 sections • Axial: main trunk – skull, spinal column, ribs, sternum • Appendicular – extremities, shoulder & pelvis

  4. Bones can differ between males and females • Men: bones are larger and heavier • Women: Pelvis is wider • Now let’s Color…..

  5. Types of Bones • Long Bones – length is greater than the width • Ex: Femur, humerus, radius • Short Bones – blocky bones that are closely joined • Ex: carpels, tarsals

  6. Flat Bones – Composed of 2 layers of compact bones with a spongy layer in between • Ex: Scapula, skull • Irregular Bones – complex shape • Ex. Vertebrae • Sesamoid Bones – small bones found within tendons • Ex. patella

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