Chapter 2

Question 1

For typical unmyelinated axons, the conduction velocity of an action potential is typically in the range of

Answer 1

.2-1.5 m/s

Question 2

Which nerve fiber types aren’t recorded with standard nerve conduction studies?

Answer 2

Small myelinated (A delta, beta); unmyelinated (C); A alpha (Ia fibers) recorded with mixed nerve studies

Question 3

What are volume-conducted, near-field potentials?

Answer 3

CMAP, SNAP, MUAP’s

Question 4

Volume-conducted, near-field potentials produce a characteristic _______ waveform with most sensory and mixed nerve studies, as well as fibs and most MUAPs

Answer 4

triphasic

Question 5

Provide a common example of a far-field potential

Answer 5

Shock/stimulus artifact