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1-If we decrease the number of ion channels in the membrane, which of the following occurs?...

1-If we decrease the number of ion channels in the membrane, which of the following occurs? (Indicate all that apply.)

a-The length constant increases.

b-The length constant decreases.

c-The time constant increases.

d-The time constant decreases.

2-If we decrease the diameter of the axon, and the number of ion channels remains the same (so membrane resistance is largely unchanged), which of the following occurs? (Indicate all that apply.)

a-The length constant increases.

b-The length constant decreases.

c-The time constant increases.

d-The time constant decreases.

3-The length of an axon is 10 mm, and its time constant is 4 msec. A voltage change at one end of the axon is 120 mV, which results in a change of about 10.35 mV at the opposite end after 4 msec. Given this information, what is the length constant of the neuron? (Enter your answer in mm, rounded to the nearest whole number, without including the units.)

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Answer #1

1.by decreasing number of ion channel,resistance of nuron membrane incresed.So,

a-The length constant increases.

c-The time constant increases.

2. time constant is independent of axiom diameter

b-The length constant decrease

3.

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