Table 2.

Synaptic vesicle pools in the adult MFB.

Bouton	Synaptic vesicles	Size of the three different pools of synaptic vesicles
	Total number	Putative RRP ±60 nm		Putative RP 60 nm ± distance ±200		Putative reserve pool ±200
	No.	No.	No./AZ	No.	No./AZ	No.
1	13,269	432	12.71	2323	70.67	10,434
3	17,138	599	42.78	3531	263.71	12,847
4	25,028	1034	57.44	4723	276.83	19,011
7	7559	367	52.42	1531	233.14	5560
Mean	15,749	608	41.34	3720	211.09	11,963
CV		0.49		0.46		0.47

Summary of structural parameters relevant for release that have been extracted from the detailed 3D-reconstructions. For the RRP and RP, two values are given: the total number of synaptic vesicles per MFB and per individual AZ. For the reserve pool, the number of synaptic vesicles per bouton is given (modified from table 1 in Rollenhagen et al., 2007a).