Appendix 1—table 3. Typical ranges of physiological values for ${\displaystyle D_{soma}}$ and ${\displaystyle S_{neuron}}$ in cat rat and mouse species.

S_MN is found to vary over an average ${\displaystyle q_S^E=2.4}$-fold range, which sets the amplitude of the theoretical ranges. Absolute {min; max} reports the minimum and maximum values retrieved in the reference studies for $D_{soma}$ and $S_{neuron}$, while average {min; max} is obtained as the average across reference studies of minimum and maximum values retrieved per study.

	Property	Unit	Absolute{min;max}	Average{min; max}	${\displaystyle q_S^E}$	Reference studies	Theoretical range
Cat	${\displaystyle D_{soma}}$	[µm]	${\displaystyle \left\{25.0;90.0\right\}}$	${\displaystyle \left\{36.7;75.5\right\}}$	2.2	Kernell, 1966; Cullheim, 1978; Zwaagstra and Kernell, 1980; Kernell and Zwaagstra, 1981; Ulfhake and Kellerth, 1981; Zwaagstra and Kernell, 1981; Burke et al., 1982; Donselaar et al., 1986; Destombes et al., 1992	[33; 79]
	${\displaystyle S_{neuron}}$	[mm2]	${\displaystyle \left\{0.08;0.64\right\}}$	${\displaystyle \{0.17;0.45\}}$	2.7	Barrett and Crill, 1974; Ulfhake and Kellerth, 1981; Burke et al., 1982; Ulfhake and Kellerth, 1984; Ulfhake and Cullheim, 1988; Moschovakis et al., 1991	[0.18; 0.44]
Rat	${\displaystyle D_{soma}}$	[µm]	${\displaystyle \left\{17.5;66.0\right\}}$	${\displaystyle \{23.9;55.7\}}$	2.4	Swett et al., 1986; Vult von Steyern et al., 1999; Copray and Kernell, 2000; Ishihara et al., 2001; Deardorff et al., 2013; Mierzejewska-Krzyżowska et al., 2014
Mouse	${\displaystyle D_{soma}}$	[µm]	${\displaystyle \left\{14.0;35.0\right\}}$	${\displaystyle \{14.0;35.0\}}$	2.5	Vult von Steyern et al., 1999
	${\displaystyle S_{neuron}}$	[mm2]	${\displaystyle \left\{0.01;0.08\right\}}$	${\displaystyle \{0.01;0.06\}}$	4.4	Amendola and Durand, 2008; Brandenburg et al., 2020