Musculus Serratus Anterior, also known as the Serratus muscle, is a fan-shaped muscle located on the upper sides of the chest. Since Serratus Anterior is a technical and difficult to comprehend label, it has several synonyms that refer to the same muscle group of the human body. Some of the frequently used synonyms include the Thoracic Serratus, Boxer's Muscle, Angel Wings Muscle, and Scapula Muscle. Its main function is to stabilize the scapula to the thoracic wall, abduct the shoulder joint, and elevate the arm overhead. The muscle plays a vital role in several physical activities like boxing, swimming, and throwing.