create SpineHead SpineHead {nseg=1 diam=1 L=0.7 insert canrgc eca=55 insert calrgc eca=45 insert pas g_pas=1/10000 Ra=150 cm=1} create Soma Soma {L=25 diam=25 nseg=1 insert pas g_pas=1/10000 Ra=150 cm=1} connect Soma(1), SpineHead(0) access SpineHead tstop=100 celsius=22 vlow=-80 vhigh=40 dt=0.01