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Bones

Bones

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Bones. Skeleton consists of 206 bones. Subdivisions. Axial Appendicular. Axial Skeleton. Bones are organs composed of the following tissues:. Bone tissue Cartilage Epithelial Fibrous connective tissue Blood connective Nervous tissue. Shapes of Bones. Long –vs- Irregular Bone. - PowerPoint PPT Presentation

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Bones

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Skeleton consists of 206 bones.

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Subdivisions

• Axial• Appendicular

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Axial Skeleton

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Bones are organs composed of the following tissues:

• Bone tissue• Cartilage• Epithelial• Fibrous connective tissue• Blood connective • Nervous tissue

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Shapes of Bones

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Long –vs- Irregular BoneIrregular Bone

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Types of Bone Growth

• Intramembranous• Skull

– Comes from primitive connective tissue cells

• Endochondral• All other

– Comes from cartilage

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Endochondral Bone Growth

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Endochondral

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Spongy –vs-Compact

• Spongy found in the expanded end region of long bones and fills irregular space.

• Compact on outer bone and shafts of long bones.

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Intramembranous Bone Growth

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Bone Fractures

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Broken Bone

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Fractures heal more quickly:

-in young individuals

-in upper limbs as opposed to lower limbs

-in spongy bones –vs- compact bone

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How recent?

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Skull

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Cervical Vertebrae

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Labwork