Biphasic action potential of mixed nerve
except?
a) All or none phenomenon
b) Two or more positive peaks
c) Refractory period
d) Recorded on surface
Correct Answer - B
Ans. is’b’i.e., Two or more positive peaks
Action potential when recorded by putting two electrodes on the
surface of a neuron (instead of putting on surface and one
intracellularly), shows a biphasic response, i.e. Biphasic action
potential.
As the wave of depolarization reached the first electrode, this
electrode becomes negative and an upward deflection (Peak) is
recorded.
Vagus, Glossopharyngeal, Facial are mixed nerve