Forearm & Hand Muscles Flashcards Preview

Anatomy > Forearm & Hand Muscles > Flashcards

Flashcards in Forearm & Hand Muscles Deck (32):
1

Pronator teres

Origin: medial epicondyle
Insertion: radius
Action: pronation of forearm
Innervation: median nerve
Perfusion: ulnar artery

2

Flexor carpi radialis

Origin: medial epicondyle
Insertion: metacarpals
Action: flexion and abduction of wrist
Innervation: median nerve
Perfusion: ulnar artery

3

Palmaris longus

Origin: medial epicondyle
Insertion: palmar aponeurosis
Action: flexion of wrist
Innervation: median nerve
Perfusion: ulnar artery

4

Flexor digitorum superficialis

Origin: medial epicondyle
Insertion: middle phalanges (V-insertion)
Action: flexion of wrist and digits (at MCPs and PIPs)
Innervation: median nerve
Perfusion: ulnar artery

5

Flexor carpi ulnaris

Origin: medial epicondyle
Insertion: metacarpals
Action: flexion and adduction of wrist
Innervation: ulnar nerve
Perfusion: ulnar artery

6

Flexor digitorum profundus

Origin: ulna
Insertion: distal phalanges (through the tunnel)
Action: flexion of wrist and digits (at MCPs, PIPs, and DIPs)
Innervation: median & ulnar nerves
Perfusion: anterior interosseous artery

7

Flexor pollicis longus

Origin: radius
Insertion: distal phalanx of thumb
Action: flexion of thumb
Innervation: median nerve
Perfusion: anterior interosseous artery

8

Pronator quadratus

Origin: distal ulna
Insertion: distal radius
Action: pronation of forearm
Innervation: median nerve
Perfusion: anterior interosseous artery

9

Extensor carpi radialis longus

Origin: supracondylar ridge
Insertion: metacarpals
Action: extension and abduction of wrist
Innervation: radial nerve
Perfusion: radial artery

10

Extensor carpi radialis brevis

Origin: lateral epicondyle
Insertion: metacarpals
Action: extension and abduction of forearm
Innervation: radial nerve
Perfusion: radial artery

11

Extensor digitorum

Origin: lateral epicondyle
Insertion: distal phalanges
Action: extension of digits
Innervation: radial nerve
Perfusion: posterior interosseous artery

12

Extensor digiti minimi

Origin: lateral epicondyle
Insertion: 5th digit
Action: extension of 5th digit
Innervation: radial nerve
Perfusion: posterior interosseous artery

13

Extensor carpi ulnaris

Origin: lateral epicondyle
Insertion: metacarpals
Action: extension and adduction of wrist
Innervation: radial nerve
Perfusion: posterior interosseous artery

14

Anconeus

Origin: lateral epicondyle of humerus
Insertion: proximal ulna
Action: extension of forearm
Innervation: radial nerve
Perfusion: interosseous recurrent artery

15

Supinator

Origin: lateral epicondyle of humerus
Insertion: proximal radius
Action: supination of forearm
Innervation: radial nerve
Perfusion: recurrent interosseous

16

Extensor indicis

Origin: distal ulna
Insertion: second digit
Action: extension of second digit, helps with extension of wrist
Innervation: radial nerve
Perfusion: posterior interosseous artery

17

Abductor pollicis longus

Origin:
Insertion:
Action:
Innervation:
Perfusion:

18

Extensor pollicis brevis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

19

Extensor pollicis longus

Origin:
Insertion:
Action:
Innervation:
Perfusion:

20

Brachioradialis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

21

Flexor pollicis brevis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

22

Abductor pollicis brevis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

23

Opponens pollicis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

24

Flexor digiti minimi

Origin:
Insertion:
Action:
Innervation:
Perfusion:

25

Abductor digiti minimi

Origin:
Insertion:
Action:
Innervation:
Perfusion:

26

Opponens digiti minimi

Origin:
Insertion:
Action:
Innervation:
Perfusion:

27

Lumbricals

Origin:
Insertion:
Action:
Innervation:
Perfusion:

28

Dorsal interossei

Origin:
Insertion:
Action:
Innervation:
Perfusion:

29

Palmar interossei

Origin:
Insertion:
Action:
Innervation:
Perfusion:

30

Adductor pollicis

Origin:
Insertion:
Action:
Innervation:
Perfusion:

31

Identify the contents of the carpal tunnel

Median nerve
Flexor pollicis longus tendon
Flexor digitorum superficialis tendons (4)
Flexor digitorum profundis tendons (4)

32

Which intrinsic thenar muscle is innervated by the ulnar nerve?

Adductor pollicis