Final answer:
The mnemonic 'SITS' for the rotator cuff muscles stands for Supraspinatus, Infraspinatus, Teres minor, and Subscapularis, which are key muscles for shoulder stability and movement.
Step-by-step explanation:
The mnemonic for the rotator cuff muscles is SITS. This mnemonic stands for: Supraspinatus, Infraspinatus, Teres minor, and Subscapularis. These muscles are vital for shoulder stability and facilitate various movements at the shoulder joint. They originate from the scapula and attach to the humerus, forming a cuff around the shoulder joint. The combined action of these muscles helps with the rotational and lifting movements of the arm, as well as stabilizing the head of the humerus within the glenoid cavity of the scapula. They are especially important in activities requiring arm elevation, such as throwing a ball. Injury to these muscles is common among athletes and can lead to significant shoulder pain and dysfunction. It's essential to keep these muscles strong and flexible to maintain good shoulder health.