Human Muscle Anatomy Teres Major. Teres major muscle TM and latissimus dorsi muscle LD are frequently used in muscle transfers around the shoulder girdle. In humans the Teres Major muscles has an action to adduct medially rotate and draw the arm back.
The muscular system is responsible for the movement of the human body. Thus it is not regarded as part of the rotator cuff muscles. The fibers are directed upward and lateralward and end in a flat tendon about 5 cm.
Thus it is not regarded as part of the rotator cuff muscles.
Attached to the bones of the skeletal system are about 700 named muscles that make up roughly half of a persons body weight. In humans the Teres Major muscles has an action to adduct medially rotate and draw the arm back. The muscular system is responsible for the movement of the human body. Thus it is not regarded as part of the rotator cuff muscles.