How does the membrane resistance affect the membrane length constant?

Question

Quizplus · Accepted Answer

The membrane length constant, denoted as lambda (λ), is a measure of how far along an axon an electrical impulse can travel before it decays to a significant extent. It is directly proportional to the square root of the membrane resistance (Rm). Therefore, as the membrane resistance increases, the length constant also increases, allowing the electrical impulse to travel further along the axon. This relationship is captured in the formula λ = sqrt(Rm/Ri), where Ri is the internal resistance of the axon.

How Does the Membrane Resistance Affect the Membrane Length Constant