9 HUMAN ANATOMY Power Point Lecture Slides prepared

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9 HUMAN ANATOMY Power. Point® Lecture Slides prepared by Leslie Hendon, University of Alabama,

9 HUMAN ANATOMY Power. Point® Lecture Slides prepared by Leslie Hendon, University of Alabama, Birmingham PART 3 Joints fifth edition MARIEB | MALLATT | WILHELM Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Special Movements § § Inversion – turning the sole medially Eversion – turning the

Special Movements § § Inversion – turning the sole medially Eversion – turning the sole laterally PLAY Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Movement of the ankle and foot (a) Figure 9. 6 c

Special Movements § § Protraction – nonangular movement of jutting out the jaw Retraction

Special Movements § § Protraction – nonangular movement of jutting out the jaw Retraction – opposite movement to protraction Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 6 d

Special Movements § § Elevation – lifting a body superiorly Depression – moving the

Special Movements § § Elevation – lifting a body superiorly Depression – moving the elevated part inferiorly Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 6 e

Special Movements § Opposition – movement of the thumb to touch the tips of

Special Movements § Opposition – movement of the thumb to touch the tips of other fingers Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 6 f

Synovial Joints Classified by Shape § Plane joint § Articular surfaces are flat planes

Synovial Joints Classified by Shape § Plane joint § Articular surfaces are flat planes § Short gliding movements are allowed § Intertarsal and intercarpal joints § Movements are nonaxial § Gliding does not involve rotation around any axis Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Plane Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure

Plane Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 7 a

Synovial Joints Classified by Shape § Hinge joints § Cylindrical end of one bone

Synovial Joints Classified by Shape § Hinge joints § Cylindrical end of one bone fits into a trough on another bone § Angular movement is allowed in one plane § Elbow, ankle, and joints between phalanges § Movement is uniaxial – allows movement around one axis only Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Hinge Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure

Hinge Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 7 b

Pivot Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure

Pivot Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 7 c

Synovial Joints Classified by Shape § Condyloid joints § Allow moving bone to travel

Synovial Joints Classified by Shape § Condyloid joints § Allow moving bone to travel § Side to side – abduction-adduction § Back and forth – flexion-extension § Classified as biaxial – movement occurs around two axes Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Condyloid Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure

Condyloid Joint Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 7 d

Synovial Joints Classified by Shape § Saddle joints § Each articular surface has concave

Synovial Joints Classified by Shape § Saddle joints § Each articular surface has concave and convex surfaces § Classified as biaxial joints Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings

Synovial Joints Classified by Shape Copyright © 2008 Pearson Education, Inc. , publishing as

Synovial Joints Classified by Shape Copyright © 2008 Pearson Education, Inc. , publishing as Benjamin Cummings Figure 9. 7 e

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18 HUMAN ANATOMY Power Point Lecture Slides prepared18 HUMAN ANATOMY Power Point Lecture Slides prepared