Which of the following is not a pa of chest wall?

Muscles of anterior compament of arm are the coraccobrachialis, the biceps brchii and the brachialis. so, the choraccobrachialis is not consider to be the muscle of chest wall and it's ( coroccobrachialis ) origin is from the tip of the coracoid process of scapula and it's inseion is at the medial border of humerus. Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 1 , pg, no., 90 ( table 8.1 )