Skip to main content
. 2009 Mar 20;5(3):e1000321. doi: 10.1371/journal.pcbi.1000321

Table 3. Fixed parameters in the model.

Parameter Symbol Value Unit Reference or Explanation
Dendritic lateral area S cut 328 µm2 [103],[104]
Dendritic volume V cut 38 µm3 [103]
Charge to concentration for Ca2+ f 136.37 µM.pC−1 f = 1/(zFV cut), z = 2 for Ca2+
Outer dendrite capacitance 1 C md 3.28×10−3 nF [33]
Outer dendrite leak conductance G ld 0.4373 nS [33]
Soma capacitance Cms 1.44×10−3 nF [33]
Soma leak conductance G ls 1.44 nS [33]
Intracellular conductance G i 2.011 nS [33]
Sensillar lymph conductance G e 26.77 nS [33]
Auxiliary cell capacitance C ma 30×10−3 nF [105]
Auxiliary cell conductance G a 3.1 nS [105]
Equilibrium potential Ca2+ (outer)2 E Ca 140 mV [61]
Equil. potential cations (outer) E cat 0 mV natural balance
Equil. potential leak (outer) E ld −97 mV E ld = E ls+E a
Equil. potential K+ (inner) E K −62 mV [83]
Equil. potential leak (inner) E ls −62 mV E lsV is0
Equil. potential (auxiliary cell)3 E a −35 mV [81]
1

Conductances and capacitances of ORN and sensillar lymph were calculated for sensillum trichodeum cell A (with thick dendrite and large action potentials) of Antheraea polyphemus in tip-recording conditions, i. e. with cut hair tip, based on morphological data [103],[104] and electrical data [33].

2

Equilibrium potentials are given for the outer dendrite in contact with the sensillar lymph (outer) or for the inner dendrite in contact with the hemolymph (inner).

3

Gives rise to the transepithelial potential.