Muscles Acting on the Wrist and Hand Posterior extensor compartment Flashcards
1
Q
Extensor carpi radialis longus
A
O: Lateral epicondyle
I: Second metacarpal
A: Extends and abducts wrist
N: Radial nerve
2
Q
Extensor carpi radialis brevis
A
O: Lateral epicondyle
I: Third metacarpal
A: Extends and abducts wrist
N: Radial nerve
3
Q
Extensor carpi ulnaris
A
O: Lateral epicondyle
I: Fifth metacarpal
A: Extends and adducts wrist
N: Radial nerve
4
Q
Extensor digitorum
A
O: Lateral epicondyle
I: Phalanges of fingers 2-5
A: Prime mover of finger extension, extends wrist
N: Radial nerve
