Muscle Anatomy


The anterior deltoid, situated at the front of the shoulder, is a robust and triangular muscle, forming the anterior part of the deltoid muscle group.

Arising from the lateral third of the clavicle, the anterior deltoid's fibers fan out towards the deltoid tuberosity on the humerus.

The muscle inserts onto the deltoid tuberosity, a prominence on the lateral surface of the humerus.

The primary function of the anterior deltoid is shoulder flexion, lifting the arm forward. It also assists in shoulder abduction, helping raise the arm laterally. Overall, the anterior deltoid contributes to various arm movements, promoting flexibility and functionality in the shoulder joint.