Get to know all about the intrinsic (scapulohumeral) muscles of the shoulder. This video can help you learn their attachments, innervation and functions in a precise manner along with special emphasis on the rotator cuff muscles. 0:02 introduction 0:35 deltoid 1:34 innervation and function of deltoid 2:54 supraspinatus 3:45 infraspinatus, teres major, teres minor 4:15 subscapularis 4:42 attachments, nerve supply and functions of infraspinatus and teres minor 7:30 attachment, innervation and functions of teres major and subscapularis 8:56 anatomical orientation of rotator cuff muscles 11:55 summary