The Probert Encyclopaedia of Medicine

FLEXOR CARPI ULNARIS

The flexor carpi ulnaris is used to bend the hand at the wrist. It gets its name from carpus (wrist bone) and the ulna (forearm bone). This muscle has two heads, one originates from the medial condyle of the humerus and the other originates from the olecranon and upper border of the ulna (forearm bone). The two heads combine to form a single, flat belly that tapers into a long tendon inserting in the pisiform bone of the wrist. It is innervated by the ulnar nerve and supplied by the ulnar artery. This muscle lies along the ulnar side of the forearm and works with the extensor carpi ulnaris to bend the hand at the wrist. If it continues to contract, it bends the elbow.
Research Flexor Carpi Ulnaris