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Muscles of Shoulder
FAB - Muscles OIAN
Question | Answer |
---|---|
Trapezius O | Superior Nuchal line; EOP; Ligamentum nucae; SP's of C7-T12 |
Trapezius I | Lat. 1/3 of superior clavicle; acromion; spine of scap. |
Trapezius N | CN 11/Accessory C3-C4 |
Trapezius A | Elevation; retraction; depress |
Deltoid O | Lateral 1/3 of clavicle; lat margin of acromion; inf. edge of spine of scap. |
Deltoid I | deltoid tuberosity of humerus |
Deltoid N | Axillary nerve, C5-C6 |
Deltoid A | Flexes and med. rotates arm; abducts arm; extends arm |
Rhomboid Minor O | SP's of C7-T1; bottom of ligamentum nuchae |
Rhomboid Minor I | Medial border of Scap base @ root |
Rhomboid Minor N | dorsal scapular C5 |
Rhomboid Minor A | retraction; rotates lat. angle of scap inferiorly |
Rhomboid Major O | SP's T2-T5 |
Rhomboid Major I | Medial border of scap base |
Rhomboid Major N | Dorsal scanpular C5 |
Rhomboid Major A | retraction; rotates lat. angle of scap inferiorly |
Levator Scapulae O | TP's of C1-C4 |
Levator Scapulae I | medial border of scap base btwn spinal root & superior angle. |
Levator Scapulae N | Dorsal Scapular C5; Ventral rami C3-C4 |
Levator Scapulae A | Elevation; Rotates lat. angle of scap inferiorly |
Infraspinatus O | Medial 2/3 of infraspinatus fossa of Scap. |
Infraspinatus I | Mid facet on posterior greater tubercle of humerus |
Infraspinatus A | Rotator cuff muscle - lat rotation of arm |
Infraspinatus N | Suprascapular nerve C5-C6 |
Supraspinatus O | Medial 2/3 of supraspinatus fossa of Scap |
Supraspinatus I | Superior facet on greater tubercle of humerus |
Supraspinatus N | suprascapular nerve C5-C6 |
Supraspinatus A | Rotator cuff muscle - abduction of arm |
Teres Minor O | Lateral portion - Upper 2/3 of the flattened area of Scap. |
Teres Minor I | Inf. facet of posterior greater tubercle of humerus |
Teres Minor N | Axillary nerve C5-C6 |
Teres Minor A | Rotator cuff muscle - lat. rotation of arm |
Teres major O | lat. border - lower 1/3 of scap. |
Teres major I | Medial lip of intertubercular groove of humerus |
Teres major N | Lower subscapular nerve C5-C7 |
Teres major A | Rotator cuff muscle - medial rotation & extension of arm |
Subscapularis O | Medial 2/3 of subscapular fossa |
Subscapularis I | Lesser tubercle of humerus |
Subscapularis N | Upper and Lower Subscapular nerves - C5-C7 |
Subscapularis A | Rotator cuff muscle - medial rotation of arm |
Serratus Anterior O | Lateral surface of Ribs 1-8/9 |
Serratus Anterior I | costal surface of medial border of scap |
Serratus Anterior N | Long thoracic nerve C6-C7 |
Serratus Anterior A | protraction and upward rotation of scapula, abduction above 90 degrees |
Latissimus Dorsi O | SP's T6-L5; Iliac crests; Ribs 9-12; Thoracolumbar fascia |
Latissimus Dorsi I | Interturbercular groove of humerus |
Latissimus Dorsi N | Thoracodorsal nerve C6-C8 |
Latissimus Dorsi A | Adduction; internal rotation; extension |
Pectoralis Major O | Medial 1/2 of clavicle; ant surface of sternum; 1st 7 costal cartilages; aponeur. of Extern. oblq. |
Pectoralis Major I | lateral lip of intertubercular groove of humerus |
Pectoralis Major N | Medial & lateral pectoral nerves |
Pectoralis Major A | Adduction, medial rotation, flexion of arm |
Pec Minor O | ant/sup borders of ribs 3-6 |
Pec Minor I | coracoid process of scap |
Pectoralis Minor A | Depress, protract scapula |
Pectoralis Minor N | Medial pectoral nerve (C6, C7, C8) |
Subclavius O | 1st rib |
Subclavius I | groove on inferior surface of mid 1/3 of clavicle |
Subclavius A | Depress clavicle; stabilize SC joint |
Subclavius N | Nerve to the subclavius |