What are the actions of serratus anterior and pectoralis minor?

The serratus anterior primarily functions to protract and stabilize the scapula against the thoracic wall, allowing for upward rotation of the scapula during arm elevation. It is crucial for movements like pushing and reaching. The pectoralis minor, on the other hand, assists in stabilizing the scapula by pulling it forward and downward, and it can also aid in elevating the ribs during forced inspiration. Together, these muscles play significant roles in shoulder and upper limb mechanics.