Brachial Plexus

Question 1

What muscle does the long thoracic nerve supply?

Answer 1

serrates anterior

Question 2

What roots make up the brachial plexus?

Answer 2

C5, C6, C7, C8, T1

Question 3

Which names nerves are in the brachial plexus?

Answer 3

musculocutaneous 
axillary 
median 
radial 
ulnar

Question 4

Which nerve roots make up the musculocutaneous nerve?

Answer 4

C5,6,7

Question 5

What does the musculocutaneous nerve supply?

Answer 5

muscles of anterior compartment of arm

skin of lateral arm

Question 6

Which nerve risks injury in a surgical neck of humerus fracture?

Answer 6

axillary

Question 7

What does the axillary nerve supply?

Answer 7

deltoid
teres minor
regimental badge patch

Question 8

Which nerve can be affected in a supracondylar fracture?

Answer 8

median

Question 9

Which nerve can be affected in a Colles fracture?

Answer 9

median

Question 10

Which nerve can be affected in a lunate dislocation?

Answer 10

median

Question 11

Which nerve is affected in carpal tunnel syndrome?

Answer 11

median

Question 12

Which nerve is affected in a fracture of the shaft of the humerus?

Answer 12

radial

Question 13

Which nerve is responsible for wrist drop?

Answer 13

radial

Question 14

Which nerve can be affected in an anterior dislocation of the shoulder?

Answer 14

axillary

Question 15

What does the median nerve supply?

Answer 15

front of 3.5 lateral fingers
thenar muscle
2 lateral lumbricles
anterior forearm

Question 16

What does the radial nerve supply?

Answer 16

back of arm - muscles and sensory

back of 3.5 lateral fingers

Question 17

What does the ulnar nerve supply?

Answer 17

medial 1.5 fingers, front and back
muscles of hand - except lateral lumbricles
flexor carpi ulnaris and flexor digitorum profundus