Definitions

Question 1

A-waves

Answer 1

Aka axon reflex. Seen when using sub-maximal stimulation during the F wave recording. Consistent in latency and amplitude and usually occurring before the F- wave

Question 2

Abduct

Answer 2

Move away from the median plane

Question 3

Abductor digiti minimi

Answer 3

Sometimes called abductor digiti quinti. Ulnar innervated muscle on the medial plane side of the little finger along side the 5th metacarpal

Question 4

Abductor digiti quinti pedis (ADQp)

Answer 4

Lateral plantar, this tibial nerve, innervated muscle on the lateral side of the foot along side the 5th metatarsal

Question 5

Synapse

Answer 5

The space between two neurological components that functions to propagate or transfer an electrical impulse through a chemical process

Question 6

Tarsal tunnel syndrome

Answer 6

A condition where the tibial nerve is compressed as it travels under the flexor retinaculum

Question 7

Temperature

Answer 7

The limb temperature. Affects the latency, amplitude and conduction velocity. Verify the limb temperature

Question 8

Thoracic Outlet Temperature

Answer 8

Compression of nerves and vessels between the neck and axilla can be non- neurogenic ( no nerves involved) or neurogenic (nerves involved). TOS is very rare and it has a unique NCS finding

Question 9

Tibial nerve

Answer 9

The largest branch of the sciatic nerve and L4-S3 nerve roots. Responsible for plantar flexion of the foot. The calcaneal nerve comes off the trunk of the tibial nerve under the flexor retinaculum. Then the tibial nerve bifurcates into the medial and lateral plantar nerves supplying sensation to the sole of the foot and innervating the abductor hallucis and abductor digiti quinti pedia which are commonly used to record motor NCS