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21 Cards in this Set
- Front
- Back
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Supraspinatus
O: supraspinous fossa I: superior facets of greater tubercle of humerus A: initiates roll N: suprascapular nerve |
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Infraspinatus
O: infraspinous fossa I: middle facets of greater tubercle of humerus A: lateral rotator and horizontal abduction of shoulder N: suprascapular nerve |
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Teres Minor
O: axillary border of scapula I: inferior facets of greater tubercle of humerus A: lateral rotator and horizontal abduction of shoulder N: axillary nerve |
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Subscapularis
O: subscapular fossa I: lesser tubercle of humerus A: medial rotator of shoulder N: subscapular nerve |
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Anterior Deltoid
O: inferior aspect of 1/3 of clavicle I: deltoid tuberosity A: shoulder abduction, flexion, medial rotation, and horizontal abduction N: axillary nerve |
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Middle deltoid
O: acromian I: deltoid tuberosity A: shoulder abduction N: axillary nerve |
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Posterior Deltoid
O: spine of scapula I: deltoid tuberosity A: shoulder abduction, extension,lateral rotation, horizontal abduction N: axillary nerve |
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Pectoralis Major (clavicular portion)
O: inferior aspect of medial 2/3 of clavicle I: lateral lip of the bicipital groove A: shoulder adduction, horizontal ADD, internal rotation and flexion 0-60% N: lateral and medial pectoral nerve |
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Pectoralis Major (sternal portion)
O: sternum, costal cartilage of first 6 ribs I: lateral lip of bicipital groove A: shoulder adduction, horizontal ADD, internal rotation and full flexion minus 60% N: lateral and medial pectoral nerve |
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Latissimus Dorsi
O: SP T7-L5, posterior surface of sacrum, iliac crest, lower 3 ribs, and thoracolumbar fascia I: floor of bicipital groove and inferior angle of scapula A: primary shoulder extension, internal rotation of humerus, scapula depression N: thoracodorsal nerve |
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Teres Major
O: inferior angle of scapula I: medial lip of bicipital groove A: internal rotation of shoulder , shoulder extension and adduction N: subscapular nerve |
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Coracobrachialis
O: coracoid process I: medial aspect of mid shaft of humerus A: shoulder adduction, and assist in shoulder flexion N: musculocutaneous nerve |
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4 muscles of the rotator cuff (SITS)
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- supraspinatus
- infraspinatus - teres minor - subscapularis |
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glenohumeral joint
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faces anterior lateral, with superior rotation, this allows the humerus to rest in the glenoid cavity. The humerus must be able to passively sit in the glenoid cavity.
-MUST SIT PASSIVELY |
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POS- plane of the scapula
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pos-45 degrees
scaption |
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joint motions/ degrees
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flexion/ext : 0-180 degrees
ab/ad duction: 0-180 degrees medial/ internal rot: 0-70 degrees lateral/ internal rot: 0-90 degrees horizontal adduction: 0-30 degrees horizontal abduction: 0-120 degrees |
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reversal movement of the lats
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hip hiker
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contractions for glenohumeral movement
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1. brain signal
2.supraspinatus roll 3.deltoids lift arm 4.infraspinatus and teres minor take humerus and pull in posterior/inferior 5.trapezius upwardly rotate the scapula 6.serratus anterior, assist in elevation and protract to reach. |
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poor resting posture of the scapula could be described as...
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slightly protracted position
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traction ischemia of the rot. cuff
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cutting off blood , because arm is to close to the body
especially in supraspinatus |
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impingment syndrome
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activities that require forceful overhead actions.
fixed position exercises like military presses. these actions do not allow proper rolling of the humerul head |
