Table 1.

Cell type–specific morphological parameters of dendrites of excitatory neurons located in a cortical barrel column, obtained from registered 3D reconstructions from in vivo preparations

Cell type	Number of dendrites	Dendrite length (mm)	Basal length (mm)	Apical length (mm)	Dendrite box volume (mm)3	Basal box volume (mm)3	Apical box volume (mm)3	Number of branch points
L2	7.1 ± 1.7	8.58 ± 2.82	4.91 ± 2.20	3.67 ± 1.15	0.049 ± 0.011	0.019 ± 0.011	0.030 ± 0.011	59.7 ± 13.3
L3	5.6 ± 1.8	6.44 ± 0.95	3.53 ± 0.68	2.91 ± 0.71	0.033 ± 0.009	0.014 ± 0.004	0.019 ± 0.007	42.4 ± 10.9
L4py	6.6 ± 0.6	7.49 ± 1.18	4.26 ± 1.04	3.23 ± 0.41	0.049 ± 0.012	0.020 ± 0.009	0.028 ± 0.005	41.0 ± 7.4
L4sp	4.6 ± 2.0	4.23 ± 0.94	2.37 ± 1.61	1.86 ± 0.98	0.026 ± 0.009	0.015 ± 0.013	0.011 ± 0.007	20.0 ± 3.2
L4ss	4.9 ± 1.3	3.38 ± 1.09			0.011 ± 0.005			25.2 ± 15.5
L5st	7.4 ± 1.8	7.71 ± 1.95	4.26 ± 1.31	3.45 ± 0.85	0.102 ± 0.043	0.027 ± 0.011	0.075 ± 0.036	36.9 ± 13.2
L5tt	7.4 ± 1.7	13.84 ± 3.63	5.92 ± 1.86	7.92 ± 1.85	0.264 ± 0.105	0.040 ± 0.020	0.224 ± 0.089	78.5 ± 15.5
L6cc	6.3 ± 0.5	5.86 ± 0.77	3.78 ± 1.11	2.08 ± 0.65	0.056 ± 0.014	0.026 ± 0.009	0.029 ± 0.019	29.4 ± 5.6
L6ct	7.6 ± 1.5	5.90 ± 0.78	2.35 ± 0.38	3.55 ± 0.56	0.035 ± 0.009	0.007 ± 0.001	0.028 ± 0.009	31.6 ± 7.0