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Muscles and Body Movements
Movement is attained due to a muscle moving an attached bone Figure 6.12 Slide 6.30a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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Muscles and Body Movements
Muscles are attached to at least two points Origin – attachment to an immoveable bone Insertion – attachment to a movable bone Figure 6.12 Slide 6.30b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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Types of Ordinary Body Movements
Flexion Extension Rotation Abduction Adduction Circumduction Slide 6.32 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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Body Movements Figure 6.13 Slide 6.33
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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Special Movements Dorsifelxion Plantar flexion Inversion Eversion
Supination Pronation Opposition Slide 6.34 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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Types of Muscles Prime mover – muscle with the major responsibility for a certain movement Antagonist – muscle that opposes or reverses a prime mover Synergist – muscle that aids a prime mover in a movement and helps prevent rotation Fixator – stabilizes the origin of a prime mover Slide 6.35 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
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