The pectoralis minor, a smaller chest muscle, lies beneath the pectoralis major, contributing to scapular and rib movements.

Origin:
Arising from the third to fifth ribs near their costal cartilages, the pectoralis minor originates along the anterior surface of the ribs.

Insertion:
The muscle inserts into the coracoid process of the scapula, a bony prominence at the anterior aspect of the shoulder blade.

Function:
The primary function of the pectoralis minor is to depress and protract the scapula, pulling it downward and forward. Additionally, it aids in stabilizing the scapula against the thoracic wall and assists in the elevation of the ribs during forced inhalation. While a smaller muscle, the pectoralis minor plays a crucial role in maintaining scapular positioning and contributing to overall shoulder and chest function.

Best Exercises for the Pectoralis Minor
The pectoralis minor is a smaller, deeper chest muscle that plays a role in scapular movement and stabilization. It assists in movements involving shoulder positioning and upper body control.

Primary Isolation Exercises
Pullover

Supporting Movements
Push-up
Bench Press
Machine Bench Press

How to Emphasize the Pectoralis Minor
Focus on controlled shoulder and scapular movement during exercises
Maintain proper posture to avoid excessive shoulder rounding
Avoid relying solely on pressing strength without controlling the shoulder position
Control both the movement and return phases to maintain stability

Explore Exercise Technique and Execution
Each exercise listed above includes a full breakdown of proper form, muscle involvement, biomechanics, and safety considerations. Select an exercise to learn how to train the chest effectively.