What are the roles of muscles in the back and forth movement of the lower chicken wing?

The muscles in the chicken wing play essential roles in facilitating back-and-forth movement through contraction and relaxation. The primary muscles involved include the biceps brachii, which flexes the wing, and the triceps brachii, which extends it. These muscles work in coordination, with one contracting while the other relaxes, allowing for smooth and controlled movement. Additionally, the shoulder muscles provide stability and support during this motion.