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.
There are FOUR rotator cuff muscles to which we add a fifth for convenience because it's often involved. 1  SUPRA-spinatus muscle. It lies above the spine of the scapula and is involved in raising the arm. 2  INFRA-spinatus muscle. This muscle lies below the spine of the scapula, hence infra. 3  SUB-scapularis muscle.