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upper extremity


Trapezius O External Occipital Protuberance
Trapezius I upper: lateral 1/3 of clavicle, acromion
Trapezius A Upper: elevation, upward rotation of scapula
Trapezius N Accessory N. and branches of C3, C4
Latissimus Dorsi O Thoracolumbar apneurosis, lower 6 thoracic sp, sacrum and iliac crest, lower 3 to 4 ribs, inferior angle of scapula
Latissimus Dorsi I Bicipital groove of humerus
Latissimus Dorsi A extention, medial rotation and adduction of humerus
Latissimus Dorsi N Thoracodorsal N.
Teres Major O Inferior Angle of scapula, lower 1/3 of axillary border of scapula
Teres Major i Medial lip of bicipital groove of humerus
Teres Major A Extension, Medial rotation and adduction of humerus
Teres Major N. lower subscapular N
Teres Minor O Upper 2/3 of axillary border of scapula
Teres Minor I Greater tubercle of humerus
Teres Minor A Lateral rotation, extension of humerus
SIT muscles = T teres minor
SIT muscles = S supraspinatus
SIT muscles = I infraspinatus
Levator Scapulae O C1-C4 TP
Levator Scapulae I Vertebral border of scapula from superior angle to root of spine
levator scapulae A Elevation, downward rotation
Levator scapulae N Dorsal scapular and branches C3 C4
Rhomboids Major and Minor O Major: T2-T5, Minor: C7, T1
Rhomboids Major and Minor I Major: Vertebral border of scapula from root of spine to inferior angle, Minor: root of spine of scapula
Rhomboids Major and Minor A Both: Retraction, downward rotation
Rhomboids N Dorsal scapular N
Supraspinatus O Supraspinatus fossa of scapula
Supraspinatus I Greater tubercle of humerus (superior facet)
Supraspinatus A Initiates abduction of humerus, stabalization of the head of humerus
Supraspinatus N Suprascapular N
Infraspinatus O Infraspinous fossa of scapula
Infraspinatus I Greater tubercle of humerus (middle facet)
Infraspinatus A Lateral rotation, extension of humerus
Infraspinatus N Suprascapular N
Subscapularis O Subscapular fossa of scapula
Subscapularis I Lesser tubercle of humerus
Subscapularis A Medial rotation and adduction of humerus
Subscapularis N Upper and lower subscapular nerve
Rotator cuff muscles = Supraspinatus, infraspinatus, teres minor, subscapularis
Pectoralis Major O clavicular head; medial half of clavicle sternal head: sternum, cartilages of upper 6 ribs
Pectoralis Major I Lateral lip of bicipital groove of humerus
Pec Major A Adduction, horizontal adduction, and medial rotation of humerus Clavicular head: flexion of humerus Sternal head: extension of humerus
Pec Major N clavicular head: lateral pec nerve sternal head: medial pec nerve
pec minor O anterior surface of ribs 3,4,5 near costal cartilages
pec minor I coracoid process of scapula on medial border of superior surface
pec minor A protraction, depression, downward rotation of scapula
pec minor N medial pec nerve
subclavius O 1st rib costocartilage junction
subclavius I inferior shaft of clavicle-middle 1/3
subclavius A stabalizes clavicle by moving it medially
subclavius N nerve to subclavius
Serratus Anterior O outer surface of upper 8 ribs
Serratus Anterior I vertebral border of scapula-anterior surface
Serratus Anterior A protraction, upward rotation of scapula, stabilizes scapula against chest wall
Serratus Anterior N Long thoracic nerve
Coracobrachialis O Coracoid process of scapula
Coracobrachialis I middle 1/3 of medial surface of humeral shaft
Coracobrachialis A Flexion & Adduction of humerus
Coracobrachialis N musculocutaneous
Deltoids O Anterior: lateral 1/3 of clavicle Middle: lateral acromion Posterior: spine of scapula
Deltoids I Deltoid tuberosity
Deltoids A Anterior: Flexion, horizontal adduction, medial rotation of humerus Middle: abduction of humerus to 90 degrees Posterior: extension, horizontal abduction, lateral rotation of humerus
Deltoids N Axillary n
teres minor n axillary
Triceps Brachii O Long: infraglenoid tubercle of scapula Lateral:posterior humerus above spiral groove Medial: posterior humerus below spiral groove
Triceps brachii I Olecranon process of ulna
Triceps brachii A extension of elbow, long: extension of humerus
Triceps brachii N radial
Anconeus O Lateral epicondyle of humerus
Anconeus I Olecranon process and posterior surface ulna
Anconeus A assists in extension of elbow
Anconeus N radial
Brachialis O Lower half of anterior shaft of humerus
Brachialis I Tuberosity of ulna, coronoid process of ulna
brachialis A flexion of elbow
brachialis n musculocutaneous
Biceps brachii O short: coracoid process of scapula long: supraglenoid tubercle of scapula
Biceps brachii I tuberosity of radius, bicipital aponeurosis,
Biceps brachii A flexion of elbow, supination of forearm short: flexion of humerus
biceps brachii N musculocutaneous
Created by: bmcvey