Superior limb neurology

Question 1

ID

Answer 1

Plexus Brachialis [Brachial Plexus]

Question 2

ID nerve

Answer 2

Nervus Dorsalis Scapulae [Dorsal Scapular Nerve] - Nerve arising directly from C5 and piercing the middle scalene muscle. It runs deep to the levator scapulae and the two rhomboids, which it supplies

Question 3

ID nerve

Answer 3

Nervus Thoracicus Longus [Long Thoracic Nerve] - Nerve arising from C5– C7, piercing the middle scalene muscle, and then running on the serratus anterior, which it innervates.

Question 4

ID nerve

Answer 4

Nervus Subclavius [Subclavian Nerve] - Thin nerve arising from the superior trunk containing fibers from C4 and C5 that innervates the subclavius. It often distributes a branch to the phrenic nerve

Question 5

ID nerve

Answer 5

Nervus Suprascapularis [Suprascapular Nerve] - Nerve formed by C5 and C6 that runs via the brachial plexus to the suprascapular notch and then passes deep to the superior transverse scapular ligament to the supraspinatus and infraspinatus.

Question 6

ID nerve

Answer 6

Nervus Pectoralis Medialis [Medial Pectoral Nerve] - Fibers from C8 and T1 that supply the pectoralis major and minor. They can arise from the inferior trunk or medial cord

Question 7

ID nerve

Answer 7

Nervus Pectoralis Lateralis [Lateral Pectoral Nerve] - Fibers arising from C5– C7 that supply both pectoral muscles. They can arise from the superior and middle trunk or from the lateral cord.

Question 8

ID nerve

Answer 8

Nervus Musculocutaneus [Musculocutaneous Nerve] - Nerve arising from the lateral cord that pierces the coracobrachialis, which it supplies along with the biceps and brachialis. It ends as the lateral cutaneous nerve of forearm

Question 9

ID nerve

Answer 9

Nervus Cutaneus Brachii Medialis [Medial Brachial Cutaneous Nerve] - Nerve arising from the medial cord and supplying the skin of the medial side of the arm via its communication with the intercostobrachial nerve

Question 10

ID nerve

Answer 10

Nervus Cutaneus Antebrachii Medialis [Medial Antebrachial Cutaneous Nerve] - Nerve arising from the medial cord, piercing the fascia at about the middle of the arm, and accompanying the basilic vein. It supplies the skin of the medial side of the distal part of the arm and forearm.

Question 11

ID nerve

Answer 11

Nervus Cutaneus Antebrachii Lateralis [Lateral Antebrachial Cutaneous Nerve] - Terminal branch of the musculocutaneous nerve that pierces the brachial fascia at the elbow and supplies the skin of the lateral forearm

Question 12

ID nerve

Answer 12

Nervus Medianus [Median Nerve] - Nerve formed by the medial and lateral cords

Question 13

ID nerve

Answer 13

Nervus Ulnaris [Ulnar Nerve] - Nerve arising from the medial cord that initially travels in the medial bicipital groove, pierces the medial intermuscular septum of the arm, and, after traversing the groove for the ulnar nerve, penetrates the flexor carpi ulnaris.

Question 14

ID nerve

Answer 14

Nervus Radialis [Radial Nerve] - Nerve arising from the posterior cord (usually with fibers from C5–T1) spiraling in the groove for the radial nerve around the posterior side of the humerus, then continuing laterally between the brachialis and brachioradialis as well as the extensor carpi radiales. It divides at the elbow into deep and superficial branches

Question 15

ID nerve

Answer 15

Nervus Subscapulares [Subscapular Nerve] - Two or three branches arising from the brachial plexus, supraclavicular part, or posterior cord. They supply the subscapularis and teres major.

Question 16

ID nerve

Answer 16

Nervus Thoracodorsalis [Thoracodorsal Nerve] - Longest subscapular nerve arising from C6–C8. It runs along the lateral border of the scapula and supplies the latissimus dorsi.

Question 17

ID nerve

Answer 17

Nervus Axillaris [Axillary Nerve] - Nerve arising from the posterior cord (C5, C6). Accompanied by the posterior circumflex humeral artery, it passes through the lateral (quadrangular) space to the teres minor and deltoid.

Question 18

ID 15

Answer 18

[superior trunk of the brachial plexus] - Superior primary trunk of brachial plexus formed by C5 and C6. It usually arises lateral to the scalene space.

Question 19

ID

Answer 19

[superior trunk of the brachial plexus] - Superior primary trunk of brachial plexus formed by C5 and C6. It usually arises lateral to the scalene space.

Question 20

ID 16

Answer 20

[Middle trunk of the brachial plexus] - Middle primary trunk of brachial plexus formed by C7.

Question 21

ID

Answer 21

[Middle trunk of the brachial plexus] - Middle primary trunk of brachial plexus formed by C7.

Question 22

ID 17

Answer 22

[Inferior trunk of the brachial plexus] - Inferior primary trunk of brachial plexus formed by C8 and T1. It lies in the scalene space posterior to the subclavian artery.

Question 23

ID

Answer 23

[Inferior trunk of the brachial plexus] - Inferior primary trunk of brachial plexus formed by C8 and T1. It lies in the scalene space posterior to the subclavian artery.

Question 24

ID

Answer 24

Anterior division of the superior trunk of the brachial plexus

Question 25

ID

Answer 25

Posterior division of the superior trunk of the brachial plexus

Question 26

ID

Answer 26

Anterior division of the middle trunk of the brachial plexus

Question 27

ID

Answer 27

Posterior division of the middle trunk of the brachial plexus

Question 28

ID

Answer 28

Anterior division of the inferior trunk of the brachial plexus

Question 29

ID

Answer 29

Posterior divison of the inferior trunk of the brachial plexus

Question 30

ID 416.2

Answer 30

[Lateral cord of the brachial plexus] - continuation of the superior trunk anterior division + middle trunk anterior division.

Question 31

ID

Answer 31

[Lateral cord of the brachial plexus] - continuation of the superior trunk anterior division + middle trunk anterior division.

Question 32

ID 416.3

Answer 32

[Medial cord of the brachial plexus] - continuation of the lower trunk anterior division.

Question 33

ID

Answer 33

[Medial cord of the brachial plexus] - continuation of the lower trunk anterior division.

Question 34

ID 416.4

Answer 34

[Posterior cord of the brachial plexus] - continuation of the superior trunk posterior division + middle trunk posterior division + lower trunk posterior division.

Question 35

ID purple (made up by blue)

Answer 35

[Posterior cord of the brachial plexus] - continuation of the superior trunk posterior division + middle trunk posterior division + lower trunk posterior division.

Question 36

ID 22

Answer 36

Nervus Dorsalis Scapulae [Dorsal Scapular Nerve] - Nerve arising directly from C5 and piercing the middle scalene muscle. It runs deep to the levator scapulae and the two rhomboids, which it supplies

Question 37

ID

Answer 37

Nervus Dorsalis Scapulae [Dorsal Scapular Nerve] - Nerve arising directly from C5 and piercing the middle scalene muscle. It runs deep to the levator scapulae and the two rhomboids, which it supplies

Question 38

ID 23

Answer 38

Nervus Thoracicus Longus [Long Thoracic Nerve] - Nerve arising from C5– C7, piercing the middle scalene muscle, and then running on the serratus anterior, which it innervates.

Question 39

ID

Answer 39

Nervus Thoracicus Longus [Long Thoracic Nerve] - Nerve arising from C5– C7, piercing the middle scalene muscle, and then running on the serratus anterior, which it innervates.

Question 40

ID 24

Answer 40

Nervus Subclavius [Subclavian Nerve] - Thin nerve arising from the superior trunk containing fibers from C4 and C5 that innervates the subclavius. It often distributes a branch to the phrenic nerve

Question 41

ID

Answer 41

Nervus Subclavius [Subclavian Nerve] - Thin nerve arising from the superior trunk containing fibers from C4 and C5 that innervates the subclavius. It often distributes a branch to the phrenic nerve

Question 42

ID 25

Answer 42

Nervus Suprascapularis [Suprascapular Nerve] - Nerve formed by C5 and C6 that runs via the brachial plexus to the suprascapular notch and then passes deep to the superior transverse scapular ligament to the supraspinatus and infraspinatus.

Question 43

ID

Answer 43

Nervus Suprascapularis [Suprascapular Nerve] - Nerve formed by C5 and C6 that runs via the brachial plexus to the suprascapular notch and then passes deep to the superior transverse scapular ligament to the supraspinatus and infraspinatus.

Question 44

ID 28

Answer 44

Nervus Pectoralis Medialis [Medial Pectoral Nerve] - Fibers from C8 and T1 that supply the pectoralis major and minor. They can arise from the inferior trunk or medial cord

Question 45

ID

Answer 45

Nervus Pectoralis Medialis [Medial Pectoral Nerve] - Fibers from C8 and T1 that supply the pectoralis major and minor. They can arise from the inferior trunk or medial cord

Question 46

ID 29

Answer 46

Nervus Pectoralis Lateralis [Lateral Pectoral Nerve] - Fibers arising from C5– C7 that supply both pectoral muscles. They can arise from the superior and middle trunk or from the lateral cord.

Question 47

ID

Answer 47

Nervus Pectoralis Lateralis [Lateral Pectoral Nerve] - Fibers arising from C5– C7 that supply both pectoral muscles. They can arise from the superior and middle trunk or from the lateral cord.

Question 48

ID 5

Answer 48

Nervus Musculocutaneus [Musculocutaneous Nerve] - Nerve arising from the lateral cord that pierces the coracobrachialis, which it supplies along with the biceps and brachialis. It ends as the lateral cutaneous nerve of forearm

Question 49

ID

Answer 49

Nervus Musculocutaneus [Musculocutaneous Nerve] - Nerve arising from the lateral cord that pierces the coracobrachialis, which it supplies along with the biceps and brachialis. It ends as the lateral cutaneous nerve of forearm

Question 50

ID 8

Answer 50

Nervus Cutaneus Brachii Medialis [Medial Brachial Cutaneous Nerve] - Nerve arising from the medial cord and supplying the skin of the medial side of the arm via its communication with the intercostobrachial nerve

Question 51

ID

Answer 51

Nervus Cutaneus Brachii Medialis [Medial Brachial Cutaneous Nerve] - Nerve arising from the medial cord and supplying the skin of the medial side of the arm via its communication with the intercostobrachial nerve

Question 52

ID 9

Answer 52

Nervus Cutaneus Antebrachii Medialis [Medial Antebrachial Cutaneous Nerve] - Nerve arising from the medial cord, piercing the fascia at about the middle of the arm, and accompanying the basilic vein. It supplies the skin of the medial side of the distal part of the arm and forearm.

Question 53

ID

Answer 53

Nervus Cutaneus Antebrachii Medialis [Medial Antebrachial Cutaneous Nerve] - Nerve arising from the medial cord, piercing the fascia at about the middle of the arm, and accompanying the basilic vein. It supplies the skin of the medial side of the distal part of the arm and forearm.

Question 54

ID 7

Answer 54

Nervus Cutaneus Antebrachii Lateralis [Lateral Antebrachial Cutaneous Nerve] - Terminal branch of the musculocutaneous nerve that pierces the brachial fascia at the elbow and supplies the skin of the lateral forearm

Question 55

ID 12

Answer 55

Nervus Medianus [Median Nerve] - Nerve formed by the medial and lateral cords

Question 56

ID

Answer 56

Nervus Medianus [Median Nerve] - Nerve formed by the medial and lateral cords

Question 57

ID 21

Answer 57

Nervus Ulnaris [Ulnar Nerve] - Nerve arising from the medial cord that initially travels in the medial bicipital groove, pierces the medial intermuscular septum of the arm, and, after traversing the groove for the ulnar nerve, penetrates the flexor carpi ulnaris.

Question 58

ID 1

Answer 58

Nervus Radialis [Radial Nerve] - Nerve arising from the posterior cord (usually with fibers from C5–T1) spiraling in the groove for the radial nerve around the posterior side of the humerus, then continuing laterally between the brachialis and brachioradialis as well as the extensor carpi radiales. It divides at the elbow into deep and superficial branches

Question 59

ID 1

Answer 59

Nervus Radialis [Radial Nerve] - Nerve arising from the posterior cord (usually with fibers from C5–T1) spiraling in the groove for the radial nerve around the posterior side of the humerus, then continuing laterally between the brachialis and brachioradialis as well as the extensor carpi radiales. It divides at the elbow into deep and superficial branches

Question 60

ID 414.26

Answer 60

Nervus Subscapulares [Subscapular Nerve] - Two or three branches arising from the brachial plexus, supraclavicu- lar part, or posterior cord. They supply the sub- scapularis and teres major.

Question 61

ID 414.27

Answer 61

Nervus Thoracodorsalis [Thoracodorsal Nerve] - Longest subscapular nerve arising from C6–C8. It runs along the lat- eral border of the scapula and supplies the latissimus dorsi.

Question 62

ID 11

Answer 62

Nervus Axillaris [Axillary Nerve] - Nerve arising from the poster- ior cord (C5, C6). Accompanied by the po- sterior circumflex humeral artery, it passes through the lateral (quadrangular) space to the teres minor and deltoid.