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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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[Anterior] Deltoid
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O: lateral third of clavicle
I: deltoid tuberosity, on lateral humerus A: GH flexion, abduction, internal rotation, & horizontal adduction I: axillary n. (C5, C6) |
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[Middle] Deltoid
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O: lateral aspect of the acromion
I: deltoid tuberosity, on lateral humerus A: GH abduction (up to 90 deg) I: axillary n. (C5, C6) |
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[Posterior] Deltoid
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O: inferior edge of scapular spine
I: deltoid tuberosity, on lateral humerus A: GH abduction, extension, horizontal abduction, & external rotation I: axillary n. (C5, C6) |
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Supraspinatus
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O: supraspinous fossa of scapula
I: superior facet, greater tubercle of humerus A: weak GH abduction I: suprascapular n. (C5) |
-rotator cuff
-stabilizes humeral head in glenoid fossa |
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Infraspinatus
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O: infraspinous fossa of scapula
I: greater tubercle of humerus, middle facet A: GH external rotation, horizontal abduction, extension I: suprascapular n. (C5, C6) |
-rotator cuff
-stabilizes humeral head in glenoid fossa |
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Teres minor
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O: upper axillary border of scapula
I: greater tubercle of humerus, inferior facet A: GH external rotation, horizontal abduction, & extension I: axillary n. (C5, C6) |
-rotator cuff
-stabilizes humeral head in glenoid fossa |
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Subscapularis
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O: subscapular fossa of scapula
I: lesser tubercle of humerus A: GH internal rotation, adduction, & extension I: upper & lower subscapular n. (C5, C6) |
-rotator cuff
-stabilizes humeral head in glenoid fossa |
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Latissimus dorsi
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O: posterior crest of ilium; back of sacrum; spinous processes of the lumbar and lower T1-T7 vertebrae
I: medial lip of intertubercular groove of humerus (anterior to teres major insertion) A: GH extension, adduction, internal rotation, & horizontal abduction I: thoracodorsal n. (C6-C8) |
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Teres major
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O: posterior inferior angle of scapula
I: medial lip of intertubercular groove of humerus (posterior to latissimus dorsi insertion) A: GH extension, adduction, & internal rotation I: lower subscapular n. (C5, C6) |
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[Upper] Pectoralis major
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O: medial half of clavicle (anterior surface)
I: lateral lip of intertubercular groove of humerus A: GH internal rotation, horizontal adduction, flexion (up to 60 deg), abduction (when at 90 deg), & adduction (when below 90 deg) I: lateral pectoral n. (C5-C7) |
"clavicular head"
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[Lower] Pectoralis major
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O: adjacent portion of sternum; cartilage of first 6 ribs (anterior surfaces)
I: lateral lip of intertubercular groove of humerus A: GH adduction, internal rotation, horizontal adduction, & extension (from flexed to anatomical position) I: medial pectoral n. (C8, T1) |
"sternal head"
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Coracobrachialis
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O: coracoid process of scapula
I: middle medial border of humeral shaft A: GH adduction, flexion, & horizontal adduction I: musculocutaneous n. (C5-C7) |
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