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.
In addition to their collective function, the rotator cuff muscles also have their own individual actions. Supraspinatus. Attachments: Originates from the supraspinous fossa of the scapula, attaches to the greater tubercle of the humerus. Innervation: Suprascapular nerve. Actions: Abducts the arm 0-15 o, and assists deltoid for 15-90 o; Infraspinatus