Table 1.

Quantification of GABAergic and glutamatergic synapse components in P0 motor neuron somas and distal dendrites.

Location	VGAT spots (n = 6)	GABA-Aα1 spots (n = 6)	VGLUT2 spots (n = 4)	PSD95 spots (n = 4)
Soma + proximal dendrites	212.1 ± 52.8	159.7 ± 38.2	39.3 ± 7.7	38.8 ± 9.1
Distal dendrites	18.8 ± 3.5	20.7 ± 4.3	41.8 ± 10.9	40.8 ± 7.7

Spots are quantified using the method described above, with VGAT and VGLUT2 pre-synaptic spots being within 1 μm of a GABA-A α1 receptor subunit or PSD-95 spot respectively. Data presented as mean ± SEM. Below, we quantify the number of spots of each type found in our sample at representative parts of the motor neuron; there is a higher proportion of inhibitory synapses found on the soma and proximal dendrites (PDs), while there is a higher proportion of excitatory synapses found on the distal dendrites.