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Shoulder Muscles
Nerve, blood supply, origin, insertion
Question | Answer |
---|---|
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 |