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Flashcards in Anterior Forearm and Palmer Hand Deck (75)
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1

Which group of muscles crosses the elbow?

superficial group, deep group does NOT

2

What is the innervation rule for the anterior forearm?

"mostly median" C6-T1

exception: 1.5 muscles are innervated by ulnar nerve (flexor carpi ulnaris and ulnar half of flexor digitorum profundus)

3

What are the actions of the anterior compartment of the forearm?

Flex wrist joint

Flex fingers

Pronation

Abduction/Adduction of wrist joint

4

Where do the SF muscles of the anterior forearm originate?

Medial epicondyle of the humerus

5

What is medial epicondylitis?

AKA "golfer's elbow"

inflammation of the common flexor origin and periosteum of the medial epicondyle

6

What muscles make up the SF group of the anterior compartment of the forearm?

pronator teres

flexor carpi radialis

flexor carpi ulnaris

palmaris longus

flexor digitorum superficialis

7

Insertion of pronator teres?

lateral radius

8

Action of pronator teres?

protonate forearm

9

Insertion of flexor carpi radialis?

radial side of hand

10

Action of flexor carpi radialis?

flex wrist joint, abduct wrist joint

11

Insertion of flexor carpi ulnaris?

ulnar side of hand

12

Action of flexor carpi ulnaris?

flex wrist joint, adduct wrist

13

What innervates flexor carpi ulnaris?

ulnar nerve

(exception to innervation rule)

14

Which muscle of the anterior forearm is missing in 15% of ppl? Where does this muscle insert?

palmaris longus

palmar aponeurosis

15

Action of palmaris longus?

flex wrist joint

16

Insertion of flexor digitorium superficialis?

middle phalanges of digits 2-5

17

Actions of flexor digitorum superficialis?

flex digits 2-5 at MCP & PIP joints

flex wrist joint

18

What are the origins of the deep group of the anterior compartment of the forearm?

ulna, radius, interosseous membrane

(do not cross elbow)

19

What are the muscles of the deep group of the anterior forearm?

flexor digitorum profundus

flexor pollicis longus

pronator quadratus

20

Insertion of flexor digitorum profundus?

distal phalanges of digits 2-5

21

Actions of flexor digitorum profundus

flex digits 2-5 at MCP, PIP & DIP joints

flex wrist joint

22

How can you test flexor digitorum profundus (FDP)?

have pt flex DIP joint

(digits 2&3: median nerve, digits 4&5 ulnar nerve)

23

How can you test flexor digitorum superficialis (FDS)?

have pt flex PIP joint

24

What innervates flexor digitorum profundus?

radial 1/2 (digits 2 &3): median nerve

ulna 1/2 (digits 4&5): ulnar nerve

25

Action of flexor pollicis longus?

Flex pollex, flex wrist joint

26

Insertion of pronator quadratus?

distal radius

27

Action of pronator quadratus?

pronate forearm

28

What is the flexor retinaculum?

band of deep fascia holding long flexor tendons in place as they cross the wrist joint

tendons are surrounded by synovial sheaths to permit movement

29

What forms the roof of the carpal tunnel?

flexor retinaculum

30

What are the contents of the carpal tunnel?

9 tendons & median nerve:

tendons of FDSF (4)
tendons of FDP (4)
tendon of flexor pollicis longus (1)