Chapter6BonesMarieb - Chapter 6-Bones and Skeletal Tissues...

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Chapter 6-Bones and Skeletal Tissues Histology of cartilage and bone Function of the skeletal system Bone terminology Bone development and growth Developed by John Gallagher, MS, DVM
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The skeletal system (like others) is multifunctional p 125 Support Storage of minerals and lipid Blood cell proliferation (red marrow) Protection (heart, brain, etc.) Leverage, Movement Metabolic role recently discovered Osteocalcin
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Cartilage: Connective tissue •Chondroblasts lay down the matrix, •become chondrocytes when surrounded by EC matrix •Chondrocytes do not mitose •Poor healing •No nerves, avascular •On aging, cartilage becomes calcified •Less flexible •Not bone
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Cartilage, cont’d Hyaline Especially articular Fibrocartilage Resists compression—IV Disk, menisci Elastic: More flexible, e.g., ear, larynx
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Types (shapes) of Bones Long Femur Short Carpal Sesamoid Patella Flat Scapula Sutural Skull Irregular Vertebra
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Typical (Long) Bone Structure Page 129
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Chapter6BonesMarieb - Chapter 6-Bones and Skeletal Tissues...

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