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11 Cards in this Set
- Front
- Back
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Cause 1
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Brain sends a signal to elevate the right UE
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Cause 2
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The signal goes to both the agonists for initiation and the antagonist for inhibition.
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Cause 3
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The supraspinatus fires to initiate roll of the humeral head
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cause 4
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the head of the humerus begins to roll superiorly and glide inferiorly
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cause 5
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the deltoids contract to begin lifting the humerus
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cause 6
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the infraspinatus and teres minor contract to pull the head of the humerus inferiorly and posteriorly
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cause 7
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the trapezius muscles fire to begin upwardly rotating the scapula
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cause 8
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the deltoids continue to fire to lift up to 90degrees of elevation
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cause 9
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as the arm reaches 90 degrees of elevation, the infraspinatus and teres minor continue to fire to cause lateral rotation to humerus
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cause 10
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the serratus anterior muscle contracts to assist in upward rotation as well as begins to protract the scapula.
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effect
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full elevation of the UE
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