Table 2. Geometrical and electrical parameters derived from Table 1.
| Parameter | Symbol | Unit | Value | Explanation | |
| Outer dendrite | Lateral area (membrane) | S d | µm2 | 328 | π L d D i |
| Volume (intracellular) | V d | µm3 | 38 | π L d D 2 i/4 | |
| Equilibrium potential of leak currents | E ld | mV | −97 | E ls + E a | |
| Capacitance per unit length a | c d | F.cm−1 | 1.49×10−10 | c m π D i | |
| Capacitance b | C d | pF | 3.28 | c m S d | |
| Resistance per unit length a | r ld | MΩ.cm | 50.26 | ρ ld/πD i | |
| Membrane resistance and leak conductance b | R ld G ld | GΩnS | 2.280.4373 | ρ ld/S d1/R ld | |
| Membrane space constant | λ | µm | 455 |
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| Membrane time constant | τ | ms | 7.5 | r ld c d | |
| Electrotonic length | l d | − | 0.484 | L d/λ | |
| Media of outer dendrite | Sensillar lymph resistance per unit length a | r e g e | GΩ.cm−1nS.cm | 1.690.592 | 4ρ e/π(D 2 e – D 2 i)1/r e |
| Sensillar lymph resistance and conductancec | R e G e | MΩnS | 37.426.77 | r e L d1/R e | |
| Intracellular resistance and conductance per unit length a | r i g i | GΩcm−1nS.cm | 22.570.0443 | 4ρ i/πD 2 i1/r i | |
| Intracellular resistance and conductance c | R i G i | MΩnS | 4972.011 | r i L d1/R i | |
| Inner dendrite and soma | Membrane resistance and leak conductance | R ls G ls | MΩnS | 6941.44 | ρ s/S s1/R s |
| Capacitance | C s | pF | 1.44 | c s S s | |
| Dimensionless ratio | r in | − | 0.900 | (R ls + R a)/λ (r e + r i) | |
| Dimensionless ratio | a | − | 0.3018 | R a/(R ls + R a) | |
| Auxiliary cells | Area of apical membrane | S api | µm2 | 3000 | C api/c |
| Resistivity of apical membrane | ρ api | Ωcm2 | 9000 | S api R api | |
| Area of basolateral membrane | S bas | µm2 | 400 | ρ bas/R bas | |
| Capacitance of basolateral membrane | C bas | pF | 4 | cS bas | |
| Resistance and conductance | R a G a | MΩnS | 3253.1 | R api + R bas1/R a | |
| Capacitance | C a | pF | 3.53 |
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a
Notations c d, g e, g i, g ld, (and r e, r i, r ld) apply to the “per unit length” (unidimensional cable) description. The corresponding parameters “per compartment” are denoted c dc, g ec, g ic, g ldc (and r ec, r ic, r ldc).
b
Conductance and capacitance for the whole outer dendrite. For a single compartment they are c dc = C d/N, g ldc = G ld/N, where N is the number of compartments in the outer dendrite.
c
Resistances and conductances for the whole internal medium of outer dendrite and whole sensillar lymph. For a single compartment the corresponding conductances are g ec = NG e and g ic = NG i.