1. 1  a suffix, equivalent in meaning to -ic, occurring in adjectives of Greek origin (analytic), used especially in the formation of adjectives from nouns with stems in -sis: hematotic; neurotic. Origin of -tic. Greek.
The supraspinatus (plural supraspinati, from Latin supraspinatus) is a relatively small muscle of the upper back that runs from the supraspinatous fossa superior of the scapula (shoulder blade) to the greater tubercle of the humerus. It is one of the four rotator cuff muscles and also abducts the arm at the shoulder.
1 Infraspinatus: This rotator cuff muscle helps raise and lower the arm. 2  Teres major: This muscle helps rotate the upper arm.  Serratus anterior: Located in the rib cage, this muscle keeps the shoulder blade against the chest wall and helps rotate the shoulder blade upward.