click below
click below
Normal Size Small Size show me how
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 |