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ulnar flexor muscle of wrist --> flexor carpi ulnaris

(Science: anatomy, muscle) origin, humeral head from medial condyle of humerus, ulnar head from olecranon and upper three-fifths of posterior border of ulna; insertion, pisiform bone, but is continued to the fifth metacarpal bone via the pisometacarpal ligament; action, flexes and abducts wrist ulnarward; nerve supply, ulnar.

Synonym: musculus flexor carpi ulnaris, ulnar flexor muscle of wrist.