Muscles of the forearm that move the wrist, hand, and fingers • Figure 6.22
Anterior superficial view
Biceps brachii
Brachialis
Pronator teres
Brachioradialis
Palmaris longus
Flexor carpi radialis
Flexor carpi ulnaris
Flexor digitorum
superficialis
Triceps brachii
Humerus
Brachioradialis
Extensor carpi
radialis
longus
Extensor
carpi ulnaris
Extensor digitorum
Ulna
Flexor carpi ulnaris
.•« y
«
Posterior view
Muscle
Origin
Insertion
Action
Muscles of the forearm
Flexor carpi radialis
(FLEK-sor KAR-pe ra'-de-A-lis)
Humerus
Second and third metacarpals
Flexes and abducts hand at wrist joint
Flexor carpi ulnaris
(ul-NAR-is)
Humerus and ulna
Pisiform, hamate, and fifth
metacarpal
Flexes and adducts hand at wrist joint
Extensor carpi radialis longus
(eks-TEN-sor)
Humerus
Second metacarpal
Extends and abducts hand at wrist joint
Extensor carpi ulnaris
Humerus and ulna
Fifth metacarpal
Extends and adducts hand at wrist joint
Skeletal Muscles Are Grouped Based on Location and Action 181
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