A_Osteologyc

A_Osteologyc - OsteologyStudy ofBoneTissue Dr.S.C.Williams...

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  1 Dr.  S. C. Williams Professor of Biology San Francisco State University Osteology –  Osteology –  Study  Study  of Bone Tissue of Bone Tissue
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  2 Introduction Introduction What is osseous tissue? What is the skeletal system? Where did the human skeleton  come from? What is the value of knowing  about the skeletal system? How does aging affect the  skeletal system?
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  3 Cat Skeleton
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  4 Pidgeon Skeleton
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  5 Overview Overview The skeletal system is ancient – predates  humans as a species It is composed about 206 separate bones in  the adult Bone numbering convention The skeleton has many vital functions, and  its failure is correlated with the loss of  quality  of life
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  6 Overview ( Overview ( Cont.) Cont.) The skeleton continually develops and remodels  throughout life The unique unit of structure of bone is the haversian  system Skeleton is classified into three parts by its origin: –  axial, branchial, appendicular
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  7 Functions of Osseous Tissues Support, form and posture Protection of vital organs and other  soft tissues Mechanical advantage for lever based  movements Muscle attachment Hemopoiesis (=hematopoiesis) Storage (e.G., Calcium carbonate,  calcium phosphate and lipid)
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  8 Microscopic Structure of Bone  Tissue Osteons or haversian  systems Osteocytes Lacunae Lamellae Canaliculi Periosteum Haversian canals Volkmann's canals
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A_Osteologyc - OsteologyStudy ofBoneTissue Dr.S.C.Williams...

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