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.
Figure 1 â Rotator Cuff Viewed from the front (left) and back (right). The rotator cuff is composed of four muscles (supraspinatus, infraspinatus, teres minor, and subscapularis) that originate from the shoulder blade (scapula) and insert by way of a common tendon on the upper arm (front, back and top of the humerus).