Forearm (posterior) Flashcards Preview

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Flashcards in Forearm (posterior) Deck (36)
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1

List the posterior superficial muscles of the forearm

Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi

2

What is the origin and insertion of brachioradialis?

Common extensor tendon
Distal radius

3

What is the nerve + arterial supply to brachioradialis?

Radial nerve
Radial recurrent nerve

4

Which movements does brachioradialis enable?

Elbow: flexion
Forearm: supination

5

What is the origin and insertion of extensor carpi radialis longus?

Common extensor tendon
2nd metacarpal

6

What is the nerve + arterial supply to extensor carpi radialis longus?

Radial nerve
Radial artery

7

Which movements does extensor carpi radialis longus enable?

Wrist: extension, abduction

8

What is the origin and insertion of extensor carpi radialis brevis?

Common extensor tendon
3rd metacarpal

9

What is the nerve + arterial supply to extensor carpi radialis brevis?

Radial nerve
Radial artery

10

Which movements does extensor carpi radialis brevis enable?

Wrist: extension, abduction

11

What is the origin and insertion of extensor digitorum?

Common extensor tendon
Medial 4 digits (fingers)

12

What is the nerve + arterial supply to extensor digitorum?

Radial nerve
Posterior interosseous artery

13

Which movements does extensor digitorum enable?

Wrist: extension
Hand: extension
Fingers: extension

14

What is the origin and insertion of extensor digiti minimi?

Common extensor tendon
5th digit

15

What is the nerve + arterial supply to extensor digiti minimi?

Radial nerve
Posterior interosseous artery

16

Which movements does extensor digiti minimi enable?

Wrist: extension
Little finger: extension

17

What is the origin and insertion of extensor carpi ulnaris?

Common extensor tendon
5th metacarpal

18

What is the nerve + arterial supply to extensor carpi ulnaris?

Radial nerve
Ulnar artery

19

Which movements does extensor carpi ulnaris enable?

Wrist: extension, adduction

20

List the posterior deep muscles of the forearm

Supinator
Extensor indicis
Extensor pollicis longus
Extensor pollicis brevis
Abductor pollicis longus

21

What is the origin and insertion of supinator?

Shaft of radius + ulna, interosseous membrane
Proximal radius

22

What is the nerve + arterial supply to supinator?

Radial nerve
Radial recurrent artery

23

Which movements does supinator enable?

Forearm: supination

24

What is the origin and insertion of extensor indicis?

Interosseus membrane
2nd digit (index finger)

25

What is the nerve + arterial supply to extensor indicis?

Posterior interosseous nerve
Posterior interosseous artery

26

Which movements does extensor indicis enable?

Wrist: extension
Index finger: extension

27

What is the origin and insertion of extensor pollicis longus?

Interosseous membrane
Distal phalanx of thumb

28

What is the nerve + arterial supply to extensor pollicis longus?

Posterior interosseous nerve
Posterior interosseous artery

29

Which movements does extensor pollicis longus enable?

Thumb: extension

30

What is the origin and insertion of extensor pollicis brevis?

Interosseous membrane
Proximal phalanx of thumb