Extrinsic hand muscles

The extrinsic muscles of the hand are muscles that originate outside the hand but insert into structures within the hand . Most of the extrinsic muscles have their origins within the forearm, with several solely/also originating from the humerus:

• flexor carpi radialis muscle

• palmaris longus muscle

• flexor carpi ulnaris muscle

• flexor digitorum superficialis muscle

• flexor digitorum profundus muscle

• flexor pollicis longus muscle

• pronator quadratus muscle

• extensor carpi radialis longus muscle

• extensor carpi radialis brevis muscle

• extensor digitorum muscle

• extensor digiti minimi muscle

• extensor carpi ulnaris muscle

• abductor pollicis longus muscle

• extensor pollicis longus muscle

• extensor pollicis brevis muscle

• extensor indicis muscle

See also

• intrinsic muscles of the hand