Serratus Anterior Muscle

**Semantic type:** Anatomical Structure

**Definition:** A large muscle of the axial skeleton, with origin from the first through the eighth or ninth rib, and insertion on the scapula, which is responsible for multiple arm movements, including anteversion of the arm, protraction of the scapula, and stabilization of the scapula against the thoracic wall.

**Synonyms:** - SERRATUS ANTERIOR MUSCLE - Serratus Magnus