ANSC 222 Lec3.Bo - Basic Bone and Muscle Structure and Biology ANSC 222 Anatomy and Physiology TA Aaron Maki 364 ASL [email protected] Outline

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Basic Bone and Muscle Structure and Biology ANSC 222: Anatomy and Physiology TA: Aaron Maki 364 ASL [email protected]
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Outline Bone Basic Bone Structure Composition of Bone Cells of Bone Growth of Bone Bone Remodeling Bone Repair Muscle Classification of Muscle Arrangement Contraction
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Bone Cells, fibers and ground substance, but matrix is mineralized hydroxyapatite crystals Protects internal organs and brain Levers for locomotion Storage of calcium and phosphate Metabolism regulated by: mechanical stress, extracellular ion levels, hormones
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Bone Structure Trabecular (spongy, cancellous) rods and plates- mineral metabolism High volume, low weight Cortical (compact) Low volume, high weight Solid- mechanical strength
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Cortical (Compact) Bone Haversian system (osteon)- structural unit Blood vessels- run in haversian canal (longitudinal) and Volkmann canal (radial)
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Trabecular (Cancellous) Bone Large interconnecting cavities Trabeculae-cavity walls aligned along lines of stress high strength/weight ratio Highly cellular- bone marrow Blood cell production
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This note was uploaded on 09/13/2010 for the course ANSC 222 taught by Professor Many during the Fall '10 term at University of Illinois, Urbana Champaign.

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ANSC 222 Lec3.Bo - Basic Bone and Muscle Structure and Biology ANSC 222 Anatomy and Physiology TA Aaron Maki 364 ASL [email protected] Outline

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