Lecture 10 - The Skeletal System The Skeletal System...

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Click to edit Master subtitle style The Skeletal System
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The Skeletal System: Functions Support Movement Protection Blood cell production Storage
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The Skeletal System: Structure Comprimises three types of connective tissue Bones Ligaments Dense connective tissue Join bone to bone Cartilage Specialized connective tissue Many functions
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Bone Structure Specialized connective tissue Most of the mass of bones consists of nonliving extra cellular matrix Contain several types of living bone cells, nerves, and blood vessels Bones come in a range of sized and shapes Most contain both compact and spongy tissue
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Bone Structure: Compact Bone Very dense with few internal spaces Hard, outer layer of bone Osteon Repeating structural unit of compact bone Concentric rings of osteocytes surrounding a central canal Osteocytes Mature bone cells Trapped in lacunae within hardened matrix Connected to one another via membrane extensions
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Bone Structure: Spongy Bone Latticework of thin struts of bone with open areas between Braces bone from within
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