The subscapularis is the largest muscle in the rotator cuff, which is a group of muscles that attaches your upper arm to your shoulder and helps you lift and rotate your arm. We’ll explain what ...

Subscapularis is a large triangular-shaped muscle that lies below the other three. It’s the strongest, largest, and most used of the four rotator cuff muscles.

In addition, case reports documenting accessory subscapularis muscles provide further evidence of the complexity of upper limb anatomy and underscore the necessity for clinicians to consider such ...