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单词 Cable equation
释义

Cable equation

英语百科

Cable theory

(重定向自Cable equation)
Figure. 1: Cable theory's simplified view of a neuronal fiber
Figure. 2: Fiber capacitance

Classical cable theory uses mathematical models to calculate the electric current (and accompanying voltage) along passive neurites, particularly the dendrites that receive synaptic inputs at different sites and times. Estimates are made by modeling dendrites and axons as cylinders composed of segments with capacitances c_m and resistances r_m combined in parallel (see Fig. 1). The capacitance of a neuronal fiber comes about because electrostatic forces are acting through the very thin lipid bilayer (see Figure 2). The resistance in series along the fiber r_l is due to the axoplasm's significant resistance to movement of electric charge.

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更新时间:2025/6/20 17:22:02