Flexor carpi ulnaris m

The flexor carpi ulnaris m. is one of the superficial flexor muscles (anterior compartment) of the forearm.  The muscle originates from the medial epicondyle of the humerus and inserts into the pisiform and hamate carpal bones, and so has the actions of both flexing the wrist and producing ulnar deviation at the wrist.  Innervation is the ulnar n.