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22 Cards in this Set
- Front
- Back
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Uniaxial
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Movement occurs in one plane around one axis
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Biaxial
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Movement occurs in 2 perpendicular planes around 2 perpendicular axes
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Biaxial
(2 types) |
1. Saddle -flex/ext or abd/add
eg. thumb 2. Condyloid -flex/ext or abd/add eg. wrist |
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Uniaxial
(2 types) |
1. Hinge -flexion, extension
eg. elbow, knee 2. Pivot -pronation/supination eg. A/A, Radius/Ulna |
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Multiaxial
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Movement occurs in 3 planes around 3 axes
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Multiaxial
(2 types) |
1. ball & socket -flex/ext, abd/add, rotation
eg. hip, shoulder 2. gliding -gliding surfaces eg. facet |
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What types of joints are located in the spine?
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1.Synovial (pivot) between the arch of the atlas and the dens of atlas
2.Cartilaginous (symphyses) between bodies of vertebrae 3. Synovial (gliding) between articular processes |
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What are the types of synovial joints? (6)
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1. Hinge (elbow)
2. Pivot (dens) 3. Saddle (thumb) 4. Condyloid (atlantooccipital) 5. Ball & Socket (shoulder) 6. Gliding (articular processes of vertebrae) |
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Saddle Joints
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-articulating ends resemble saddles
-only 2 in entire body (1 in each thumb) |
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Condyloid Joints
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-oval condyle fits into an elliptical socket
eg. condyles of occipital bone fit into elliptical of the atlas |
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Angular Movement
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change the size of the angle between articulating bones
eg. flex/ext, abd/add, |
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Circular Movements
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arclike rotation of a structure around an axis
eg. rotation, circumduction, supination/pronation |
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Gliding Movements
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simplest of all movement
articular surface of one bone moves over the articular surface of another w/o any angular or circular movement |
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Special Movement
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unique or unusual & occur in limited # of joints
eg. inversion/eversion, protraction/retraction, elevation/depression |
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What is the difference between the glenoid and the acetabulum?
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glenoid is at the shoulder joint
acetabulum is at the hip joint |
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Synovial Structure
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1. Joint capsule
2. Synovial membrane 3. Articular cartilage 4. Joint cavity 5. Menisci (articular disks) 6. Ligaments 7. Bursae |
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Circular Movements
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arclike rotation of a structure around an axis
eg. rotation, circumduction, supination/pronation |
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Gliding Movements
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simplest of all movement
articular surface of one bone moves over the articular surface of another w/o any angular or circular movement |
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Special Movement
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unique or unusual & occur in limited # of joints
eg. inversion/eversion, protraction/retraction, elevation/depression |
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What is the difference between the glenoid and the acetabulum?
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glenoid is at the shoulder joint
acetabulum is at the hip joint |
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Synovial Structure
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1. Joint capsule
2. Synovial membrane 3. Articular cartilage 4. Joint cavity 5. Menisci (articular disks) 6. Ligaments 7. Bursae |
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Bursae
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A pillow-like structure which consists of a synovial membrane filled with synovial fluid. Associated with bony prominence where they function to cushion joint and facilitate movement.
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