part of part of has muscle origin has muscle origin has muscle insertion has muscle insertion Homo sapiens muscle of shoulder supraspinatus muscle http://upload.wikimedia.org/wikipedia/commons/9/99/Arm_muscles_back_numbers.png EHDAA:8319 SCTID:181626001 EMAPA:18182 MA:0002389 Wikipedia:Supraspinatus_muscle FMA:9629 supraspinatus VHOG:0000848 UBERON:0002383 NCIT:C33709 musculus supraspinatus UMLS:C0584869 EHDAA2:0001967 The supraspinatus is a relatively small muscle of the upper limb that takes its name from its origin from the supraspinous fossa superior to the spine of the scapula. It is one of the four rotator cuff muscles and also abducts the arm at the shoulder. The spine of the scapula separates the supraspinatus muscle from the infraspinatus muscle, which originates below the spine. [WP,unvetted]. rotator cuff scapula pectoral complex muscle ventral tubercle of humerus scapular muscle