Principles of Functions of Bone Human Anatomy Eleventh ... Anatomy Bi… · n Pott’s fracture n...
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1 CHAPTER 6 Bone Tissue Copyright © 2007 by John Wiley & Sons, Inc. Principles of Human Anatomy Eleventh Edition Principles of Human Anatomy Eleventh Edition Gerard J. Tortora & Mark T. Nielsen Functions of Bone Functions of Bone n Support n Protection n Aid in movement n Mineral storage (Ca ++ & phosphorus) n Blood cell production (red bone marrow) n Energy storage (yellow bone marrow) 06_02 06_02 Cells found in bone tissue Cells found in bone tissue Bone Matrix Bone Matrix n Tricalcium phosphate = Hydroxyapatite n Ca 3 (PO 4 ) 2 • (0H) 2 n Calcium carbonate n CaCO 3 n Collagen fibers – tensile strength 06_04a 06_04a Volkmann’s canal
Transcript of Principles of Functions of Bone Human Anatomy Eleventh ... Anatomy Bi… · n Pott’s fracture n...
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CHAPTER 6Bone Tissue
Copyright © 2007 by John Wiley & Sons, Inc.
Principles ofHuman Anatomy
Eleventh Edition
Principles ofHuman Anatomy
Eleventh EditionGerard J. Tortora
&
Mark T. Nielsen
Functions of BoneFunctions of Bone
n Supportn Protectionn Aid in movementn Mineral storage (Ca++ & phosphorus)n Blood cell production (red bone marrow)n Energy storage (yellow bone marrow)
06_0206_02 Cells found in bone tissueCells found in bone tissue
Bone MatrixBone Matrix
n Tricalcium phosphate = Hydroxyapatiten Ca3(PO4)2 • (0H)2
n Calcium carbonaten CaCO3
n Collagen fibers – tensile strength
06_04a06_04a
Volkmann’s canal
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06_04d06_04d
Bone FormationBone Formationn Endochondral Ossification
n Most bones formed in this wayn Formation of bone within a hyaline cartilage
modeln Intramembranous Ossification
n Flat bones (skull)n Mandiblen Formation of bone directly on fibrous
connective tissue
Endochondral OssificationEndochondral Ossification
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Bone FractureBone Fracturen Partial/incomplete
n Not all the way thru
n Complete n The bone is broken in at
least 2 pieces
n Closed/simplen Not protruding thru the skin
n Displacedn Anatomical alignment is
compromised
n Non-displacedn Anatomical alignment is
maintained
n Stressn Microscopic fractures n Usually in the tibian Athletes are prone
n Pathalogicn Weakening caused by a
disease processn Bone cancern Osteoporosis
Bone Fractures cont.Bone Fractures cont.n Open/Compound
n Broken ends protrude through the skin
n Greenstick fracturen Occurs only in childrenn One side broken the other
side bendsn Pott’s fracture
n Fracture to the distal end of the fibula w/ injury to the tibial articulation
Bone Fractures cont.Bone Fractures cont.n Comminuted fracture
n Bone is splintered, crushed or broken into pieces
n Most difficult to treatn Impacted fracture
n One end is driven into the other
n Colles’ fracturen Fracture to the distal end of
the radius where the fragment is displaced posteriorly
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Learning ObjectivesLearning Objectives
n Demonstrate understanding of bone terms being able to describe each term.
n Functions of bone tissuen Describe endochondrial and
intramembranous ossification and which bones develop from each
n Describe the different bone fractures
