The frequency of nerve impulses along a certain neuron is controlled by
A.length of the refractory period
B.level of the threshold potential
C.polarity of the resting membrane
D.intensity of the stimulus received
the answer cant be c,
I am debating wether it is D or A
what do you think?
2007-03-01 05:45:46 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
It's D.
The intensity of the stimulus is coded by the frequency of the action potentials.
While the length of the refractory period will determine the MAXIMUM frequency a cell can fire this is a constant for a given nerve cell and it does not change for different strength stimuli. So the refractory period does not control the frequency in dependence of the intensity of the stimulus received. In a way it will have the same effect than B would.
2007-03-01 08:20:35 · answer #1 · answered by eintigerchen 4 · 0⤊ 0⤋
I'm going with A.
2007-03-01 05:49:11 · answer #2 · answered by Brian L 7 · 0⤊ 0⤋
I'd go with A also.
2007-03-01 05:51:54 · answer #3 · answered by hcbiochem 7 · 0⤊ 0⤋
I think it's D
2007-03-01 05:54:24 · answer #4 · answered by ANT-a-gonistic 3 · 0⤊ 0⤋
It's D.
2007-03-01 05:51:04 · answer #5 · answered by Ben H 4 · 0⤊ 0⤋