Serratus anterior muscle

Serratus Anterior Muscle

The Serratus Anterior Muscle is a muscle that originates on the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula.

Serratus Anterior Muscle

Function

The primary actions of the serratus anterior muscle include protraction of the scapula, upward rotation of the scapula, and holds the scapula against the thoracic wall. It is a key muscle in the movement of the arms and shoulders, particularly in activities that require pushing or punching.

Anatomy

The serratus anterior muscle is divided into three parts: the superior, intermediate, and inferior. Each part has a different role in the movement and stabilization of the scapula.

File:Serratus anterior muscle anatomy.png

Anatomy of the Serratus Anterior Muscle

Clinical Significance

Damage or injury to the serratus anterior muscle can lead to a condition known as "winged scapula", where the scapula protrudes from the back in an abnormal position. This can result in pain, weakness, and limited range of motion.

See Also

• Scapula
• Thoracic wall
• Winged scapula