Neuromuscular Anatomy and EMG/NCS

Question 1

Motor Neurons are located in the ventral or dorsal spinal cord ?

Answer 1

Ventral

Question 2

Sensory Neurons are located in the ____.

Answer 2

Dorsal Root Ganglion

Question 3

The spinal nerve is located distal or proximal to the dorsal root ganglion ?

Answer 3

Distal

Question 4

How many pairs of spinal nerves ?

Answer 4

31

Question 5

Spinal Nerves divide into the….

Answer 5

dorsal and venral rami

Question 6

The ___ rami innervate the paraspinal muscles and skin over the spine.

Answer 6

dorsal

Question 7

The ___ rami form the brachial and lumbar plexus

Answer 7

ventral

Question 8

Dose a radiculopathy cause complete paralysis and/or complete dermatomal sensory loss ?

Answer 8

No (dermatomes and myotomes overlap)

Question 9

Are Sensory Action Potentials affected in spinal root disorders ?

Answer 9

no DRG is distal to pathology

Question 10

Are Sensory Action Potentials affected in plexopathies ?

Answer 10

yes

Question 11

plexopathy with myokymia on needle EMG

Answer 11

radiation plexopathy