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 muscle is one of the musculotendinous support structures called the rotator cuff that surround and enclose the shoulder. It helps to resist the inferior gravitational forces placed across the shoulder joint due to the downward pull from the weight of the upper limb.
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).