Which nerve root corresponds to shoulder flexion and the radial wrist?

The nerve root that corresponds to shoulder flexion and the radial wrist is C6. This is because the C6 nerve root is primarily involved in the innervation of the muscles responsible for flexing the shoulder and extending the wrist, particularly the radial aspect of the wrist.

In the context of shoulder flexion, muscles such as the biceps brachii and the pectoralis major are significantly influenced by the C6 nerve root, as they are responsible for this movement. Additionally, the radial wrist movements, especially wrist extension, involve the extensor muscles that are also innervated by this specific nerve root.

Understanding the functional anatomy of the brachial plexus and the corresponding nerve roots allows clinicians and athletic trainers to assess neuromuscular function effectively, contributing to accurate diagnosis and rehabilitation strategies for athletes experiencing upper extremity issues.