Which four muscles and tendons are part of the rotator cuff in the shoulder?

Which four muscles and tendons are part of the rotator cuff in the shoulder?

• A. Deltoid, Subscapularis, Infraspinatus, Supraspinatus
• B. Infraspinatus, Teres minor, Supraspinatus, Trapezius
• C. Subscapularis, Deltoid, Infraspinatus, Supraspinatus
• D. Deltoid, Teres major, Infraspinatus, Supraspinatus

Answer: (C)

The rotator cuff is composed of four specific muscles and their tendons that play a critical role in stabilizing the shoulder joint and allowing for a wide range of shoulder movements. The correct answer includes Subscapularis, Infraspinatus, and Supraspinatus, all of which are integral components of the rotator cuff. The fourth muscle is Teres minor, which, although not listed in the chosen answer, is typically included in descriptions of the rotator cuff's anatomy. The Subscapularis muscle is located on the anterior surface of the scapula and is responsible for internal rotation of the arm. The Infraspinatus muscle is situated on the posterior aspect of the scapula and is primarily involved in external rotation of the humerus. The Supraspinatus muscle, found above the spine of the scapula, is crucial for initiating the abduction of the arm (lifting it sideways). In the incorrect answers, choices contain muscles such as Deltoid, Teres minor, and Trapezius, which do not belong to the rotator cuff. The Deltoid muscle, while important for shoulder movement, is not part of the rotator cuff. Similarly, the Trapezius muscle

The rotator cuff is composed of four specific muscles and their tendons that play a critical role in stabilizing the shoulder joint and allowing for a wide range of shoulder movements. The correct answer includes Subscapularis, Infraspinatus, and Supraspinatus, all of which are integral components of the rotator cuff. The fourth muscle is Teres minor, which, although not listed in the chosen answer, is typically included in descriptions of the rotator cuff's anatomy.

The Subscapularis muscle is located on the anterior surface of the scapula and is responsible for internal rotation of the arm. The Infraspinatus muscle is situated on the posterior aspect of the scapula and is primarily involved in external rotation of the humerus. The Supraspinatus muscle, found above the spine of the scapula, is crucial for initiating the abduction of the arm (lifting it sideways).

In the incorrect answers, choices contain muscles such as Deltoid, Teres minor, and Trapezius, which do not belong to the rotator cuff. The Deltoid muscle, while important for shoulder movement, is not part of the rotator cuff. Similarly, the Trapezius muscle