Question

what muscle is n? trapezius deltoid pectoralis major external oblique

Explanation:

The pectoralis major is a large muscle in the chest. It is responsible for movements of the shoulder joint, such as flexion (lifting the arm forward), adduction (pulling the arm towards the body), and internal rotation (rotating the arm inward). In the diagram, the muscle labeled N is the pectoralis major.

Answer:

pectoralis major