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Shoulder Muscles

Nerve, blood supply, origin, insertion

QuestionAnswer
Deltoid N Axillary n C5, C6
Deltoid BS Acromial and deltoid branches of TA trunk Subscapular a Ant and post circumflex humeral aa Deltoid branch of profunda brachii
Deltoid O Ant border and superior surface of lateral 1/3 clavicle Later margin and superior surface of acromion Lower edge of crest of scapular spine
Deltoid I Lesser tubercle of humerus Front of articular capsule
Subscapularis N Upper and lower subscapular nerve C5, C6
Subscapularis O Costal surface of scapular
Subscapularis I Lesser tubercle of humerus Front of articular facet
Supraspinatus N Suprascapular n C5, C6
Supraspinatus BS Dorsal scapular a Suprascapular a
Supraspinatus O Medial 2/3 of supraspinatous fossa Supraspinous fascia
Supraspinatus I Highest facet of greater tubercle of humerus
Infraspinatus N Suprascapular n C5, C6
Infraspinatus BS Suprascapular a Circumflex scapula a
Infraspinatus O Medial 2/3 of infraspinous fossa Deep surface of infraspinous fascia
Infraspinatus I Middle facet of greater tubercle of humerus
Teres Minor N Axillary n C5, C6
Teres Minor BS Circumflex scapular a Post circumflex humeral a
Teres Minor O Upper 2/3 of flat strip on lateral dorsal surface of scapula
Teres Minor I Lowest facet of greater tubercle of humerus
Teres Major N Lower subscapular n C5-C7
Teres Major BS Post circumflex humeral a Thoracodorsal a
Teres Major O Oval area on dorsal surface of inferior scapular angle
Teres Major I Medial tip of intertuberous sulcus of humerus
Created by: PippaODU