PROPERTIES OF BIOLOGICAL TISSUES

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PROPERTIES OF BIOLOGICAL TISSUES
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Some of the source illustrations and information
are to be found inGrays Anatomy (37th
Ed)Biomechanics of the Musculo-skeletal System
(2nd Ed)Edited by Benno Nigg Walter Herzog
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BONES, TENDONS, LIGAMENTS AND CARTILAGE ARE
INHOMOGENEOUS IN COMPOSITION.THEY ARE
ANISOTROPIC IN THEIR MECHANICAL BEHAVIOUR
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THEY ARE METABOLICALLY ACTIVE AND THE CELLS
GENETICALLY EXPRESS MATERIALS IN RESPONSE TO
MECHANICAL CIRCUMSTANCES.(You should ask OTHERS
about such matters).
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BONE
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The mechanical properties of a bony STRUCTURE
e.g. of the femur, should be distinguished from
those of the MATERIALS e.g. cortical and spongy
bone, of which it is composed.
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Three modes of loading
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Combined loadings are usual
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STRUCTURAL PROPERTIES
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MATERIAL PROPERTIES
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LIGAMENTS(Similar phenomena are observed in
tendons)
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VISCOELASTIC BEHAVIOUR