UE musculoskeletal system

Scapular elevation prime movers

upper trapezius, levator scapulae

Scapular depression prime movers

latissimus dorsi, pectoralis major, pectoralis minor, lower trapezius

scapular protraction prime movers

serratus anterior, pectoralis minor

scapular retraction prime movers

rhomboids, middle trap

scapular upward rotation prime movers

upper and lower trap, serratus anterior

scapular downward rotation prime movers

rhomboids, levator scapulae, pectoralis minor

shoulder flexion prime movers

anterior deltoid, coracobrachialis, biceps brachii, pectoralis major

shoulder extension prime movers

latissimus dorsi, posterior deltoid, triceps (long head), teres major

shoulder abduction prime movers

middle deltoid, supraspinatus

shoulder adduction prime movers

pectoralis minor, latissimus dorsi, teres major

shoulder horizontal abduction prime movers

posterior deltoid, infraspinatus, teres minorsho

shoulder horizontal adduction prime movers

anterior deltoid, pectoralis major

shoulder lateral rotation prime movers

teres minor, infraspinatus, posterior deltoid

shoulder medial rotation prime movers

subscapularis, teres major, pectoralis major, latissimus dorsi, anterior deltoid

elbow flexion prime movers

biceps brachii, brachialis, coracobrachialis

elbow extension prime movers

triceps brachii, anconeus

supinator prime movers

biceps brachii, supinator

pronation prime movers

pronator teres, pronator quadratus

glenohumeral loose packed position

55 degrees abduction, 30 degrees horizontal adductiong

glenohumeral close packed position

abduction and lateral rotation

glenohumeral capsular pattern

lateral rotation, abduction, medial rotation

radiohumeral open packed position

full extension, supination

radiohumeral close packed position

90 degrees flexion, 5 degrees supination

ulnohumeral open packed position

70 degrees elbow flexion, 10 degrees supination

ulnohumeral close packed position

extension

radiocarpal open packed position

neutral with slight ulnar deviation

radiocarpal close packed position

extension with radial deviation

acromioclavicular ligaments function

control horizontal movements of clavicle

coracoacromial ligament function

limit superior translation of humeral head and prevent separation of the AC joint

caracoclavicular ligament function

primary support of AC joint, limiting superior translation of clavicle

coracohumeral ligament function

unites supraspinatus and subscapularis tendons and limits inferior translation of humeral head

costoclavicular ligament function

primary supporting ligament for SC joint

superior glenohumeral ligament function

limits adduction of shoulder as well as lateral rotation with shoulder in 0-45 degrees of abductionm

middle glenohumeral ligament function

limits lateral rotation with shoulder in 45-90 degrees of abduction

inferior glenohumeral ligament function

limits lateral rotation, medial rotation, and inferior translation above 90 degrees of abductiont

transverse humeral ligament function

helps to maintain the tendon of the long head of the biceps within the bicipital groove

annular ligament function

allows head of radius to rotate and retain contact with radial notch of ulna

anterior ligament function

capsular in nature and function

radial collateral ligament function

prevents adduction of the elbow joints and provides radiohumeral reinforcement

ulnar collateral ligament

prevents excessive abduction of the elbow jointd

dorsal radiocarpal ligament function

limit wrist flexion

palmar radiocarpal ligament function

limits hyperextension of wrist and maintains alignment of associated joint structures

wrist radial collateral ligament function

limit ulnar deviation