Which nerve is responsible for wrist flexion?

The median nerve plays a crucial role in facilitating wrist flexion. It innervates several of the muscles located in the forearm that are primarily responsible for this action, particularly the flexor carpi radialis and the palmaris longus. When these muscles contract, they allow the wrist to bend forward, which is essential for various daily activities and tasks.

The radial nerve, while involved in wrist movement, primarily innervates the extensor muscles, which are responsible for wrist extension and not flexion. The ulnar nerve, on the other hand, mainly innervates the flexor carpi ulnaris and some intrinsic muscles of the hand, contributing to wrist flexion only to a limited extent. The digital nerve is more concerned with sensation and motor control of the fingers rather than the overall action of wrist flexion. Thus, the median nerve is the key player in the flexion movement at the wrist joint.