posted by Alex .
In general, the frequency of APs in an afferent neuron is related to the amplitude of the receptor potential in the following way:
b. there is no general relationship.
Is it exponentially? The other options make no sense.
During the rising phase of the action potential:
a. the membrane potential becomes more negative.
b. the hyperpolarization of the membrane potential brings it to threshold.
c. there is a net influx of Na+.
d. voltage-gated Na+ channels close.
I put there is a net influx of Na+