1
Q
Extensor digitorum
Origin
Insertion
A
Origin:
- Lateral epicondyle (common extensor tendon)
Insertion:
- Middle and distal phalanges of D2-5
2
Q
Extensor digitorum
Action
Innervation
A
Action:
- Hand, wrist, finger extension
Innervation:
- Posterior IO n. (from radial n.)
3
Q
Extensor carpi radialis longus
Origin
Insertion
A
Origin:
- Common extensor tendon
Insertion:
- Base of M2
4
Q
Extensor carpi radialis longus
Action
Innervation
A
Action:
- Wrist extension
- Abduction
Innervation:
- Radial n.
5
Q
Extensor carpi radialis brevis
Origin
Insertion
A
Origin:
- Common extensor tendon
Insertion:
- Base of M3
6
Q
Extensor carpi radialis brevis
Action
Innervation
A
Action:
- Wrist extension
- Abduction
Innervation:
- Posterior IO n. (from radial n.)
7
Q
Extensor carpi ulnaris
Origin
Insertion
A
Origin:
- Common extensor tendon
- Ulna
Insertion:
- Base of M5
8
Q
Extensor carpi ulnaris
Action
Innervation
A
Action:
- Wrist extension
- Adduction
Innervation:
- Posterior IO n. (from radial n.)
9
Q
Extensor digiti minimi
Origin
Insertion
A
Origin:
- Common extensor tendon
Insertion:
- Extensor expansion at base of proximal phalanx on D5
10
Q
Extensor digiti minimi
Action
Innervation
A
Action:
- Wrist/D5 extension
Innervation:
- Posterior IO n. (from radial n.)
11
Q
Extensor Indicis
Origin
Insertion
A
Origin:
- Distal ulna and IO membrane
Insertion:
- Base of proximal phalanx of D2
12
Q
Extensor Indicis
Action
Innervation
A
Action:
- Wrist/D2 extension
Innervation:
- Posterior IO n. (from radial n.)
