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May 22, 2015

Homework Help: Biology

Posted by Alex on Wednesday, January 6, 2010 at 2:11pm.

In general, the frequency of APs in an afferent neuron is related to the amplitude of the receptor potential in the following way:
a. exponentially.
b. there is no general relationship.
c. logarithmically.
d. linearly.

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+

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