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.
The rotator cuff is a group of muscles that include the subscapularis and supraspinatus, which cause medial rotation and abduction of the arm, as well as the infraspinatus and teres minor, which together cause lateral rotation of the arm, all at the shoulder. To unlock this lesson you must be a Study.com Member.