Nerve roots

Question 1

Musculocutaneous nerve

Answer 1

C5-7

Lateral cord

BBC muscs
Becomes lat cutaneous nerve of forearm

Question 2

Axillary nerve

Answer 2

C5, C6

Posterior cord

Ant branch: deltoid, some overlying skin
Post branch: teres minor, deltoid

Question 3

Radial nerve

Answer 3

C5-8, T1

Posterior cord

Triceps brachii, supinator, anconeus, extensor muscs of forearm, brachioradialis

Question 4

Medial root of median nerve

Answer 4

C8, T1

Medial cord

Fibres of median nerve

Question 5

Long thoracic nerve

Answer 5

C5-7

Roots

Serratus anterior

Question 6

Ulnar nerve

Answer 6

C8, T1

Medial cord

FCU, FDP (medial part), intrinsic hand muscs except thenar, 2 lateral lumbricals

Question 8

Medial pectoral nerve

Answer 8

C8, T1

Medial cord

Pec major & minor

Question 9

Upper subscapular nerve

Answer 9

C5, C6

Posterior cord

Upper Subscapularis

Question 10

Thoracodorsal nerve

Answer 10

C6-8

Posterior cord

Latissimus dorsi

Question 11

Lower subscapular nerve

Answer 11

C5, C6

Posterior cord

Lower Subscapularis, teres major

Question 12

Nerve to subclavius

Answer 12

C5, C6

Upper trunk

Subclavius musc

Question 13

Suprascapular nerve

Answer 13

C5, C6

Upper trunk

Supraspinatus
Infraspinatus

Question 14

Phrenic nerve branch

Answer 14

C5

Roots

Diaphragm

Question 15

Obturator nerve

Answer 15

L2-4

Obturator externus, adductor longus & brevis, gracilis, pectineus, adductor magnus

Question 16

Femoral nerve

Answer 16

L2-4

Iliopsoas, pectineus, sartorius, quadriceps femoris

(Cutaneous branches: ant cuteneous, saphenous)

Question 17

Dorsal scapular nerve

Answer 17

C4, C5

Roots

Rhomboid muscs, levator scapulae

Question 18

Lateral pectoral nerve

Answer 18

C5-7

Lateral cord

Pec major, pec minor