Which muscle is innervated by the ulnar nerve?

The flexor carpi ulnaris is innervated by the ulnar nerve, which is essential for the movement of the wrist and hand, particularly in flexion and adduction of the wrist. This muscle plays a critical role in wrist stability and function, especially during activities that require grip strength or hand movements that involve lateral stability.

The ulnar nerve originates from the medial cord of the brachial plexus and primarily innervates muscles in the forearm and hand. In the forearm, it innervates the flexor carpi ulnaris, which works alongside the flexor carpi radialis (innervated by the median nerve) but serves different functions when it comes to wrist movement.

Understanding the specific innervation and function of forearm muscles is vital for surgical procedures, rehabilitation, and diagnosing nerve injuries. The relevance of the ulnar nerve in the context of the flexor carpi ulnaris underscores the importance of this muscle in both clinical examinations and practical applications within the field of surgery and medicine.