This large anterior chest muscle inserts on the anterior humerus and has its origins on the clavicle,upper ribs,and sternum.It allows a person to point toward an object directly in front of him.

Question

Quizplus · Accepted Answer

The description matches that of the pectoralis major muscle, which originates from the clavicle, upper ribs, and sternum and inserts onto the anterior humerus. It plays a role in arm adduction and flexion, as well as internal rotation of the humerus.

This Large Anterior Chest Muscle Inserts on the Anterior Humerus