Brachial Plexus

Question 1

Name Sections of Brachial Plexus from most proximal to most distal

Answer 1

Roots; Trunks; Divisions; Cords; Terminal Branches

Question 2

Name and Identify Trunks

Answer 2

2: Superior, Middle, Inferior

Question 3

Identify and name cords

Answer 3

4: Lateral; Posterior; Medial

Question 4

Identify #1: name; cervical nerves; which muscles it innervates

Answer 4

1. Dorsal Scapular
2. C5
3. Rhomboids and Levator Scapulae

Question 5

Identify #20: name; Cervical nerve(s); which muscles does it innervate?

Answer 5

1. Long Thoracic Nerve
2. C5-C7
3. Serratus Anterior

Question 6

Identify # 18: Name; Cervical nerves; What muscles it innervates

Answer 6

1. Suprascapular N
2. Superior Trunk: C5-C6
3. Supraspinatous; Infraspinatous

Question 7

Identify # 19: Name; cervical nerves; What muscle does it intervate?

Answer 7

Nerve to Subclavian; Superior Trunk (C5-C6); Subclavius

Question 8

Identify # 11: Name; Cervical Nerve; What muscles does it innervate?

Answer 8

1. Lateral Pectoral Nerve
2. Lateral Cord (C5-C7)
3. Pectoralis Major

Question 9

Identify #17: Name; Cervical Nerves; What muscles does this innervate?

Answer 9

1. Medial Pectoral Nerve
2. Medial Cord (C8-T1)
3. Pectoralis Major and Minor

Question 10

Identify # 15/16: Name: Cervical nerves; Function?

Answer 10

1. Medial Cutaneous
2. Medial cord (C8-T1)
3. Sensation to Medial Arm and Forearm

Question 11

Identify # 7: Name; cervical nerves; Muscles that it innervates

Answer 11

1. Axillary Nerve
2. Posterior Cord (C5-C6)
3. Deltoid; Teres Minor

Question 12

Identify # 12: Name; cervical nerves; muscles it innervates

Answer 12

1. Lower subscapular nerve
2. Posterior cord C5-C6
3. Teres Major; Subscapular

Question 13

Identify #13: Name; Cervical nerves; muscles that it innervates

Answer 13

1. Thoracodorsal
2. Posterior Cord C6-C8
3. Latissimus Dorsi

Question 14

Identify # 14: Name; cervical nerves; Muscles it innervates

Answer 14

1. Upper Subscapular Nerve
2. Posterior Cord C5-C7
3. Subscapular m

Question 15

Identify # 6: Name; cervical nerves; muscles that it innervates

Answer 15

1. Musculocutaneous N
2. Lateral Cord C5-C7
3. brachialis; coracobrachialis; biceps brachii

Question 16

What is the cutaneous innervation of musculocutaneous nerve?

Answer 16

Lateral forearm

Question 17

What nerve does the musculocutaneous nerve continue as in the forearm?

Answer 17

Lateral antebrachial cutaneous nerve

Question 18

Identify #8: Name; cervical nerves; area of muscles it innervates

Answer 18

1. Radial N
2. Posterior Cord C5-T1
3. Posterior arm and forearm

Question 19

Identify # 9: Name; Cervical nerves; area of muscles it innervates

Answer 19

1. Median Nerve
2. Medial and Lateral cords: C6-T1
3. most superficial anterior forearm muscles

Question 20

Identify #10: Name; cervical nerves; area of muscles it innervates

Answer 20

1. Ulnar N
2. Medial Cord: C8-T1
3. Most of palm