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Flashcards in MSK UL Muscles Of The Forearm Deck (34):
1

Where in the forearm are the muscles found that make up the snuff box?

In the posterior forearm - specifically the deep layer.

2

How many muscles are there is the anterior forearm? Each layer?

8 all together.
4 superficial, 1intermediate and 3 deep

3

What are the superficial muscles of the forearm?

Pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris

4

What is the role of pronator teres?

Pronation of the forearm

5

What is the role of flexor carpi radialis?

Flexion and abduction of the hand at the wrist

6

What is the role of palmaris longus?

Flexion of the wrist

7

What is the role of flexor carpi ulnaris?

Flexion at the wrist and adduction of the hand at the wrist

8

What is the intermediate muscle of the anterior forearm and what is its role?

Flexor digitorum superficialis
Flexion of Metacarpophanalngeal joints and proximal interphalangeal joint at the 4 fingers

9

What is flexor digitorum superficialis' relationship with nerves and arteries?

The muscle has 2 heads - 1 attached to the humerus and the other to the radius.
The median nerve and ulnar artery pass between the the muscle's two heads then travel posteriorly

10

What are the deep muscles of the forearm?

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

11

What are the muscles of the anterior forearm innervated by? What are the exceptions?

Median nerve
Exceptions: medial half od the flexor digitorum profundus and flexor carpi ulnaris

12

What is the role of flexor digitorum?

Flexion of distal IP joints

13

What is the role of flexor pollicis longus?

Flexion of the thumb

14

What is the role of pronator quadratus?

Pronation of the forearm

15

What is the action which is useful to remember for the deep muscles of the anterior forearm?

Punching action

16

What does the word pollicis indicate?

Thumb

17

What does the word carpi indicate?

Wrist

18

How many muscles are found in the posterior forearm? How many in each layer?

12- 6/7 superficial and 5/6 deep

19

How cn you remember the 6/7 superficial muscles of the posterior forearm?

Draw dots on your posterior forearm whilst it is pronated

20

WhT are the 6/7 superficial muscles of the forearm?

Brachiaoradialis
Extensor carpi radialis longus and brevis
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris
(Anconeus)

21

What are the 5/6 deep muscles of the forearm?

(Anconeus)
Supinator
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis
Extensor indicis

22

Where is brachioradialis found and what is it's role?

On the radial aide of the posterior forearm
Supination
Flexion of the elbow when forearm is pronated

23

Where are extensor carpi radialis longus and brevis found and what is their role?

-

24

Where is extensor digitorum found and what is it's role?

Runs down the middle of the posterior forearm
Goes to all fingers
Extension of the fingers

25

Where is extensor digiti minimi found and what is it's role?

On the little finger side
Extension of the little finger

26

Where is extensor carpi ulnaris found and what is it's role?

Found on the ulnar side
Extension of the wrist and ulnar deviation

27

Where is anconeus found and what is it's role?

Little muscle found near the elbow
Extension of the elbow

28

Where is supinator found and what is it's role?

Quite a large muscle
Found near the elbow
Supination of the forearm

29

Where is extensor indicis found found and what is it's role?

Runs down the middle of the posterior forearm and then intor the index finger
Extension of the index finger

30

What makes up the snuff box?

Abductor pollicis longus and extensor pollicis longus and brevis

31

Where is extensor pollicis longus found and what is it's role?

On the inside of the brevis sandwich near the palm
Extends all of the joints of the thumb

32

Where is extensor pollicis brevis found and what is it's role?

In the middle of the thumb
Extends the metcarpophalangeal joint of the thumb

33

Where is abductor pollicis longus found and what is its role?

On the outside of the brevis sandwich
ABducts the thumb

34

Where do you find the median nerve in the wrist?

Just distal to the wrist, if you reflect back the palmaris longus, you will find the median nerve immediately underneath it.