Muscles of the Anterior forearm Flashcards Preview

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Flashcards in Muscles of the Anterior forearm Deck (26):
1

What are the 3 layers of muscle in the forearm?

Superficial
Intermediate
Deep

2

What is the general action of muscles in the anterior forearm?

Flexion at wrist
Flexion at fingers
Pronation

3

What are the 4 suoerficial muscles in the anterior forearm?

Pronator teres
Flexor carpi radialis
Palmaris Longua
Flexor carpi ulnaris

4

What is important about the 4 superficial muscles in the anterior forearm?

The all have a common tendon that originates at the medial epichondyle

5

What is the main action of flexor carpi ulnaris?

Flexion at the wrist
Adduction at the wrist

6

What nerve innervates the flexor carpi ulnaris?

The ulnar nerve

7

What lies directly underneath the Palmaris longus at the wrist?

The median nerve

8

What innervates the Palmaris longus?

The median nerve

9

What is the main action of the Palmaris longus?

Flexion at the wrist

10

What is the main action of Flexor carpi radialis?

Abduction at the wrist
Flexion at the wrist

11

What nerve innervates the Flexor carpi radialis?

The median nerve

12

What is the main action of Pronator teres?

Pronation of the forearm

13

What nerve innervates Pronator teres?

The median nerve

14

What is the intermediate muscle in the forearm?

Flexor digitorum superficialis

15

What is special about the Flexor digitorum superficialis?

It has 2 heads, the median nerve and Ulnar artery passes through these

16

What is the main action of Flexor digitorum superficialis?

Flexes at the wrist
Flexes metacarpophalangeal joint
Flexes proximal interphalangeal joint

17

What innervates the Flexor digitorum superficialis?

The median nerve

18

What are the 3 muscles in the deep layer of the anterior forearm?

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

19

What is the main action of the Flexor digitorum profundus?

Flex distal interphalangeal joint
Flex metacarpophalangeal joint
Flex at the wrist

20

What innervates the Flexor digitorum profundus?

Medial half - Ulnar nerve
Lateral half - Median nerve

21

Where is Flexor pollicis longus in relation to Flexor digitorum profundus?

Laterally

22

What is the main action of Flexor pollicis longus?

Flex interphalangeal joint of the thumb
Flex Metacarpophalangeal joint of the thumb

23

What innervates Flexor pollicis longus?

Median nerve

24

Where is Pronator quadratus in relation to Flexor pollicis longus and Flexor digitorum profundus?

Deep

25

What is the main action of Pronator quadratus?

Pronation of the forearm

26

What innervates Pronator quadratus?

The median nerve