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Upper Limb (plus back and chest wall) > Extensors > Flashcards

Flashcards in Extensors Deck (12)
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1

Extensor digitorum

Origin

Insertion

Origin: 

  • Lateral epicondyle (common extensor tendon)

Insertion:

  • Middle and distal phalanges of D2-5

2

Extensor digitorum

Action

Innervation

Action: 

  • Hand, wrist, finger extension

Innervation:

  • Posterior IO n. (from radial n.)

3

Extensor carpi radialis longus

Origin

Insertion

Origin:

  • Common extensor tendon

 Insertion:

  • Base of M2

4

Extensor carpi radialis longus

Action

Innervation

Action: 

  • Wrist extension
  • Abduction

Innervation:

  • Radial n.

5

Extensor carpi radialis brevis

Origin

Insertion

Origin: 

  • Common extensor tendon

Insertion:

  • Base of M3

6

Extensor carpi radialis brevis

Action

Innervation

Action:

  • Wrist extension
  • Abduction

 Innervation:

  • Posterior IO n. (from radial n.)

7

Extensor carpi ulnaris

Origin

Insertion

Origin: 

  • Common extensor tendon
  • Ulna

Insertion:

  • Base of M5

8

Extensor carpi ulnaris

Action

Innervation

Action:

  • Wrist extension
  • Adduction

Innervation:

  • Posterior IO n. (from radial n.)

9

Extensor digiti minimi

Origin

Insertion

Origin:

  • Common extensor tendon

 Insertion:

  • Extensor expansion at base of proximal phalanx on D5

10

Extensor digiti minimi

Action

Innervation

Action: 

  • Wrist/D5 extension

Innervation:

  • Posterior IO n. (from radial n.)

11

Extensor Indicis

Origin

Insertion

Origin:

  • Distal ulna and IO membrane

 Insertion:

  • Base of proximal phalanx of D2

 

12

Extensor Indicis

Action

Innervation

Action:

  • Wrist/D2 extension

 Innervation:

  • Posterior IO n. (from radial n.)