Forearm

Question 1

What separates the compartments of the forearm?

Question 2

what are the bones of the forearm and what connects them?

Question 3

Lateral intermuscular septum

Question 4

interosseous membrane

Question 5

deep fascia of the forearm

Question 6

what are the contents of the anterior compartment of the forearm?

Answer 6

1. flexor and pronator muscles
2. radial and ulnar arteries and their branches
3. median and ulnar nerve

Question 7

What is the arrangement and function of the muscles of the anterior compartment of the forearm?

Answer 7

• They are arranged in three layers:
  1. Superficial layer
  2. Intermediate layer
  3. Deep layer
• They are associated with:
  1. movements of the wrist joint (abduction and adduction)
  2. finger and thumb flexion
  3. pronation.

Question 8

what are the muscles of the superficial layer of the anterior compartment of the forearm?

Answer 8

4; from medial to lateral:
1) flexor carpi ulnaris
2) palmaris longus
3) flexor carpi radialis
4) pronator teres

Question 9

what are the muscles of the intermediate layer of the anterior compartment of the forearm?

Answer 9

1:
flexor digitorum superficialis

Question 10

what are the muscles of the deep layer of the anterior compartment of the forearm?

Answer 10

3; medial to later;
1) Flexor digitorum profundus
2) Flexor pollicis longus
3) Pronator quadratus

Question 11

what is the common flexor origin?

Answer 11

medial epicondyle of the humerus

Question 12

what are the common extensor origins?

Answer 12

lateral supraepichondylar ridge and lateral epicondyle of the humerus

Question 13

Where does the flexor carpi ulnaris originate?

Question 14

Where does the flexor carpi radialis originate?

Question 15

where does the palmaris longus originate?

Question 16

where does the pronator teres originate?

Question 17

Where does the flexor carpi radialis insert?

Question 18

Where does the flexor carpi ulnaris insert?

Question 19

Where does the palmaris longus insert?

Question 20

Where does the pronator teres insert?

Question 21

where does the flexor digitorum superficialis originate?

Question 22

where does the flexor pollicis longus originate?

Question 23

where does the pronator quadratus originate?

Question 24

where does the flexor digitorum profundus originate?

Question 25

where does the flexor digitorum superficialis insert?

Question 26

where does the flexor pollicis longus insert?

Question 27

where does the flexor digitorum profundus insert?

Question 28

where does the pronator quadratus insert?

Question 29

Where does the brachioradialis originate?

Question 30

Where does the extensor carpi ulnaris originate?

Question 31

Where does the extensor carpi radialis longus originate?

Question 32

Where does the extensor carpi radialis brevis originate?

Question 33

Where does the extensor digitorum originate?

Question 34

Where does the extensor digiti mini originate?

Question 35

where does the anconeus originate?

Question 36

Where does the extensor carpi radialis longus insert?

Question 37

Where does the brachioradialis insert?

Question 38

Where does the extensor carpi radialis brevis insert?

Question 39

where does the anconeus insert?

Question 40

Where does the extensor digiti mini insert?

Question 41

Where does the extensor digitorum insert?

Question 42

Where does the extensor carpi ulnaris insert?

Question 43

where does the Supinator insert?

Question 44

where does the Abductor pollicis longus insert?

Question 45

where does the Extensor pollicis brevis insert?

Question 46

where does the extensor pollicis longus insert?

Question 47

Where does the extensor indicis originate?

Question 48

where does the Supinator originate?

Question 49

where does the Abductor pollicis longus originate?

Question 50

where does the Extensor pollicis brevis originate?

Question 51

where does the extensor pollicis longus originate?

Question 52

Where does the extensor indicis originate?

Question 53

what blood vessels are in the anterior compartment of the forearm?

Answer 53

the terminal branches of the brachial artery which are the;
1) Ulnar artery
2) Radial artery, their branches, and the profunda brachii artery.

Question 54

what are the branches of the ulnar artery?

Answer 54

1) Anterior and posterior ulnar
recurrent arteries
2) Common interosseous artery
3) Cutaneous branches
4) Muscular branches
5) Dorsal carpal branch and Palmar
carpal branch, which supply the
wrist.

Question 55

What blood vessels supply the posterior compartment of the forearm?

Answer 55

1. radial artery
2. posterior interosseous artery
3. anterior interosseous artery

Question 56

what nerves innervate the anterior compartment of the forearm?

Answer 56

the median nerve (the principal
nerve of the anterior compartment)
the ulnar nerve (only FCU and medial head of FDP)

Question 57

what are the branches of the median nerve?

Answer 57

1) anterior interosseous nerve
2) Articular branch
3) Muscular branches
4) Palmar cutaneous branch

Question 58

what are the branches of the ulnar nerve?

Answer 58

1) Muscular branches
2) Two cutaneous branches to the
hand; palmar and dorsal
3) Articular branch to elbow joint

Question 59

what nerves innervate the posterior compartment of the forearm?

Answer 59

Radial nerve

Question 60

what are the branches of the radial artery?

Answer 60

1) Radial recurrent artery
2) Cutaneous branches
3) Muscular branches
4) Palmar carpal branch
5) Superficial palmar branch

Question 61

what is the largest terminal branch of the brachial artery?

Answer 61

the ulnar artery

Question 62

how do most structures pass between the arm and the forearm proximally?

Answer 62

through, or in relation to, the cubital fossa, which is ante­ rior to the elbow joint

Question 63

which structure bypasses the cubital fossa when entering the forearm from the arm?

Answer 63

the ulnar nerve, which passes posterior to the medial epicon­dyle of the humerus.

Question 64

how do most structures pass between the forearm and the hand distally?

Answer 64

through, or anterior to, the carpal tunnel

Question 65

which structure bypasses the carpal tunnel to enter the hand from the forearm?

Answer 65

the radial artery, which passes dor­sally around the wrist to enter the hand posteriorly

Question 66

what are the superficial veins of the forearm?

Answer 66

• Superficial Veins
  1) Basilic Vein
  2) Cephalic Vein
  3) Median Vein
  a) median cubital vein
  b) median antebrachial vein

Question 67

what are the deep veins of the forearm?

Answer 67

• Deep Veins
  Deep venous arch in the hand
  form vena comitantes
  1) Ulnar Veins
  2) Radial Veins

Question 68

what are the branches of the radial nerve?

Answer 68

1. superficial branch
2. deep branch
3. posterior interosseous nerve

Question 69

Posterior interosseous nerve

Answer 69

continuation of the radial nerve

Question 70

anterior interosseous nerve

Answer 70

branch of the median nerve

Question 71

posterior interosseous artery

Answer 71

branch of the common interosseous artery, which is a branch of the ulnar artery.

Question 72

anterior interosseous artery

Answer 72

a branch of the common interosseous artery, which is a branch of the ulnar artery.