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Pectoral Girdle
| Question | Answer |
|---|---|
| serratus anterior | upward rotation of scapula, depression of scapula, abduction as in throwing a punch |
| pectoralis minor | depression, protraction of shoulder and elevates ribs in deep respiration |
| levator scapulae | elevates scapula |
| rhomboid major and rhomboid minor | adduction of scapula |
| trapezius | scapular elevation, retraction and depression |
| what are four muscles of rotator cuff? | subscapularis, supraspinatus, infraspinatus and teres minor |
| subscapularis | medial rotation |
| supraspinatus | initiates abduction |
| infraspinatus & teres minor | lateral rotation |
| anterior fibers of deltoid | flexion and medial rotation |
| posterior fibers of deltoid | extension and lateral rotation of humerus |
| pectoralis major | adduction and medial rotation of arm & flexeion and extension of shoulder like during pull ups |
| latissimus dorsi | adduction (with teres major) & medial rotation (with subscapularis, pectoralis major and teres major) |
| teres major | assits latissimus dorsi in adduction and medial rotation |
| coracobrachialis | flexion of arm at shoulder with pectoralis major and anterior deltoid, adduction with latissimus dorsi, teres major and pectoralis major |
| what are four muscles of rotator cuff? | subscapularis, supraspinatus, infraspinatus and teres minor |
| subscapularis | medial rotation |
| supraspinatus | initiates abduction |
| infraspinatus & teres minor | lateral rotation |
| anterior fibers of deltoid | flexion and medial rotation |
| posterior fibers of deltoid | extension and lateral rotation of humerus |
| pectoralis major | adduction and medial rotation of arm & flexeion and extension of shoulder like during pull ups |
| latissimus dorsi | adduction (with teres major) & medial rotation (with subscapularis, pectoralis major and teres major) |
| teres major | assits latissimus dorsi in adduction and medial rotation |
| coracobrachialis | flexion of arm at shoulder with pectoralis major and anterior deltoid, adduction with latissimus dorsi, teres major and pectoralis major |