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Laura MSK UL > MSK UL Muscles Of The Forearm > Flashcards

MSK UL Muscles Of The Forearm Flashcards

1
Q

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

A

In the posterior forearm - specifically the deep layer.

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2
Q

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

A

8 all together.

4 superficial, 1intermediate and 3 deep

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3
Q

What are the superficial muscles of the forearm?

A

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

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4
Q

What is the role of pronator teres?

A

Pronation of the forearm

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5
Q

What is the role of flexor carpi radialis?

A

Flexion and abduction of the hand at the wrist

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6
Q

What is the role of palmaris longus?

A

Flexion of the wrist

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7
Q

What is the role of flexor carpi ulnaris?

A

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

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8
Q

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

A

Flexor digitorum superficialis

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

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9
Q

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

A

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

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10
Q

What are the deep muscles of the forearm?

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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11
Q

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

A

Median nerve

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

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12
Q

What is the role of flexor digitorum?

A

Flexion of distal IP joints

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13
Q

What is the role of flexor pollicis longus?

A

Flexion of the thumb

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14
Q

What is the role of pronator quadratus?

A

Pronation of the forearm

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15
Q

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

A

Punching action

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16
Q

What does the word pollicis indicate?

A

Thumb

17
Q

What does the word carpi indicate?

A

Wrist

18
Q

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

A

12- 6/7 superficial and 5/6 deep

19
Q

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

A

Draw dots on your posterior forearm whilst it is pronated

20
Q

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

A 
Brachiaoradialis
Extensor carpi radialis longus and brevis 
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris
(Anconeus)
21
Q

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

A 
(Anconeus)
Supinator
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis 
Extensor indicis
22
Q

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

A

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

23
Q

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

A

-

24
Q

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

A

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

25
Q

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

A

On the little finger side

Extension of the little finger

26
Q

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

A

Found on the ulnar side

Extension of the wrist and ulnar deviation

27
Q

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

A

Little muscle found near the elbow

Extension of the elbow

28
Q

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

A

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

29
Q

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

A

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

30
Q

What makes up the snuff box?

A

Abductor pollicis longus and extensor pollicis longus and brevis

31
Q

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

A

On the inside of the brevis sandwich near the palm

Extends all of the joints of the thumb

32
Q

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

A

In the middle of the thumb

Extends the metcarpophalangeal joint of the thumb

33
Q

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

A

On the outside of the brevis sandwich

ABducts the thumb

34
Q

Where do you find the median nerve in the wrist?

A

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

Laura MSK UL (19 decks)

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