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Muscles of Shoulder

FAB - Muscles OIAN

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
Created by: thenathan