Compound action potential is seen in
|A||Motor nerve to spindle|
|B||Slow pain fibres|
a. The compound action
b. potential is graded in nature, in striking contrast to the all-or-none response of single axons.
c. There is a simple explanation for why the response of a nerve is graded and that of a single fiber is all-or-none.
d. The nerve is composed of many fibers of different diameters, with these different diameters seemingly distributed at random throughout the nerve.
e. Therefore mixed nerve is the best candidate as it will most likely be having different fibres unlike muscle spindle motor having only A gamma and Slow pain fibres only C fibres.