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17 Cards in this Set
- Front
- Back
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Sagittal plane
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- bisects the body into right and left halves
- medial-lateral axis; around a frontal axis |
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Coronal Plane
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-bisects the body into front and back halves
-anterior-posterior axis |
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Transverse Plane
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-bisects the body to create upper and lower halves
- Superior to inferior axis; occurs around a vertical/longitudinal axis |
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Example of 2 degrees of freedom joint
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Knee joint biaxial- allows flexion/extension and internal/external rotation
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Example of 3 degrees of freedom join
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Shoulder is triaxial- allows flexion/extension, abduction/adduction, and internal/external rotation
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Tipping
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when inferior portion of the scapula moves away from thorax
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Winging
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when the medial border of scapula move away from thorax
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Pronation of foot
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- dorsiflexion at ankle, eversion at the tarsals, abduction of forefoot
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Supination of foot
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ankle plantar flexion, tarsal inversion and forefoot adduction
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Forefoot adduction
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when the forefoot moves toward the great toe side of the foot.
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Forefoot abduction
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when the forefoot moves toward the little toe side of the foot.
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Effort force
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The force that is producing the resultant torque (force acting in the direction of the rotation.
-always the winner |
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Resistance force
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The force creating an opposing torque.
-always the loser in producing rotation of a segment |
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First-class lever
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- the seesaw
-2 forces applied on different sides of an axis -Effort arm may be greater, smaller, and equal to resistance arm- |
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Example of first class lever
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Supraspinatus on greater tubercle of humerus is on opposite side of axis of rotation from GH joint
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2nd class lever
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- when 2 resultant forces are applied so that the resistance lies between the effort force and the axis of rotation
-the wheel barrel |
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3rd class lever
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-When forces are applied so that the effort force lies closer to the axis than does the resistance
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